 | George Augustus Walton - Arithmetic - 1864 - 364 pages
...as 4 is to 6 ; that is, 2 is the same part of 3 that 4 is of G. 2 is f of 3, and 4 is j{ of 6. 367. The first and fourth terms of a proportion are called the extremes, and the second and third are called the means. The first ratio : ; called the first couplet, and the second ratio the second... | |
 | William Frothingham Bradbury - Algebra - 1868 - 264 pages
...-. ; read, a to b equals c to d, or a is to b as c is to d, or a divided by b equals c divided by d. The first and fourth terms of a proportion are called the extremes, and the second and third the means. 106. In a proportion the product of the means is equal to the product of the extremes. Let... | |
 | Charles Davies - Geometry - 1870 - 392 pages
...quantities which are compared together are called the terms of the proportion. The first and last terms are called the extremes, and the second and third terms, the means. Thus, A and D are the extremes, and В and G the means. 3. Of four proportional quantities, the first and... | |
 | Thomas Percy Hudson - 1870 - 302 pages
...& 3 : 4 = 12 : 16, 3 : 4 : : 12 : 16. The last expression would be read, 3 is to 4 as 12 is to 16. The first and. fourth terms of a proportion are called the extremes ; the middle two, the means. 4. If four numbers be proportional, the product of the extremes is equal... | |
 | Shelton Palmer Sanford - Arithmetic - 1872 - 404 pages
...be read thus : the ratio of 15 to 5 is equal to the ratio of 12 to 4. ART. 287. The first and last terms of a proportion are called the extremes, and...the second and third terms, the means. Thus, in the proportion 3 : 6 : : 4 : 8, 3 and 8 are the extremes, and 6 and 4 the means. AKT. 288. Since in any... | |
 | H T. Sortwell - 1873 - 176 pages
...21 is to 12. Proportion is the equality of ratios. Simp1e Proportion is the equality of two ratios. The first and fourth terms of a proportion are called the extremes ; the second and third terms are called the means. Thus, in the example 7 : 4 : : 21 : 12, the numbers... | |
 | George Augustus Walton - 1876 - 358 pages
...as 4 is to 6 ; that is, 2 is the same part of 3 that 4 is of 6. 2 is § of 3, and 4 is § of 6. 367. The first and fourth terms of a proportion are called the extremes, and the second and third are called the means. The first ratio :; called the first couplet, and the second ratio the second... | |
 | William Frothingham Bradbury - Algebra - 1877 - 302 pages
...-.; read, a to b equals c to d, or a is to b as c is to d, or a divided by b equals c divided by d. The first and fourth terms of a proportion are called the extremes, and the second and third the means. 106. In a proportion the product of the means is equal to the product of the extremes. Let... | |
 | Samuel Mecutchen, George Mornton Sayre - Arithmetic - 1877 - 200 pages
...to 8 as 12 is to 24, or, the ratio of 4 to 8 is equal to the ratio of 12 to 24. The first and last terms of a proportion are called the Extremes, and the second and third terms the Means. In any proportion the product of the means is equal to the product of the extremes. Thus, in the proportion... | |
 | Joseph Ray - Arithmetic - 1877 - 350 pages
...„ . д I : : r \ „ I is a compound proportion. 6. Every proportion consists of four terms. 7 .. The first and fourth terms of a proportion are called the extremes. (282) 8. The second and third terms of a proportion are called the means. 9. The last term is said... | |
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The first and fourth terms of a proportion are called the extremes, and the second and third terms, the means. Thus, in the foregoing proportion, 8 and 3 are the extremes and 4 and 6 are the means. 
