 | John Davidson, Robert Scott (writing master) - 1818 - 190 σελίδες
...the fourth'. Proportionals are written thus, 6 : 2 : ; 9 : 3 ; and read thus, 6 is to 2 as 9 to 8. The first and last terms of a proportion are called the Extremes, and the middle terms, the Means : and when four numbers are proportional, " the product of the extremes is... | |
 | Sir John Leslie - 1820 - 488 σελίδες
...said to be proportional, when a submultiple of the first is contained in the second as often as a like submultiple of the third is contained in the fourth....a reversed order. Thus, if the ratio of A to B be considered as direct, the ratio of B to A is inverse or reciprocal. 16. Quantities form a continued... | |
 | Etienne Bézout - 1824 - 238 σελίδες
...(arithmetically) 12 is to 14 ; and in a geometrical proportion, 3 is to 15 as (geometrically) 4 is to 20. 173. The first and last terms of a proportion are called the extremes ; the second and third, or two middle te> ins, are called the means. . As theje are tw.o ratios, and... | |
 | 1829 - 196 σελίδες
...read, the ratio of 4 to 6 equals the ratio of 10 to 15 ; or more concisely, its to 6 OB 10 to 15. 168. The FIRST and LAST terms of a proportion are called the EXTREMES, and the two middle terms the MEANS. 169. In a proportion there are TWO RATIOS, and conse-. quently two antecedents... | |
 | Thomas H. Palmer - 1840 - 328 σελίδες
...proportions, the two ratios in each being equal ; those in No. 1 being 2, those in No. 2, J, (one third.) The first and last terms of a proportion are called the extremes ; the two middle terms, the means. It is evident, from the mere inspection of any proportion, that... | |
 | James Bates Thomson - 1846 - 402 σελίδες
...is the last term called in such a case ? What is the difference between proportion and ratio ? 331. The first and last terms of a proportion are called the extremes ; the other two, the means. Oss. Homologous terms are either the two antecedents, or the two consequents.... | |
 | James Bates Thomson - 1846 - 354 σελίδες
...the last term called in such a case ? What is the difference between proportion and ratio ! 32 1 . The first and last terms of a proportion are called the extremes ; the other two, the means. Oas. Homologous terms are either the two antecedents, or the two consequents.... | |
 | James Bates Thomson - 1846 - 362 σελίδες
...What is the last term called in such acase? What is the difference between proportion and ratio * 321* The first and last terms of a proportion are called the extremes ; the other two, the means. OBS. Homologous terms are either the two antecedents, or the two consequents.... | |
 | James Bates Thomson - 1847 - 426 σελίδες
...the other hand, cannot be greater or kss thun another; for equality does not admit of degrees. 495. The first and last terms of a proportion are called the extremes ; the other two, the means. Ons. Htmwlngims terms are either the two antecedents, or the two consequents.... | |
 | James Bates Thomson - 1848 - 434 σελίδες
...the other hand, cannot be greater or less than another ; for equality does not admit of degrees. 495* The first and last terms of a proportion are called the extremes ; the other two, the means. OBS. Homologous terms are either the two antecedents, or the two consequent*.... | |
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The first and last terms of a proportion are called the extremes, and the two middle terms are called the means. 
