 | John Henry Moore - Business mathematics - 1904 - 404 pages
...ratios. It is indicated by placing the sign of equality =, or a double colon :: between the ratios. 950. The first and fourth terms of a proportion are called the extremes, and the second and third terms, the means. 951. The test of proportion is that the two integers or fractions representing the... | |
 | International Correspondence Schools - Arithmetic - 1904 - 656 pages
...ratio of the first term to the second term equals the ratio of the third term to the fourth term. 65. 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.... | |
 | John Henry Tanner - Algebra - 1904 - 398 pages
..." 6 is to 3 as 10 is to 5 " ; its meaning is the same as 6 : 3 = 10 : 5, ie, the same as a = ¥• The first and fourth terms of a proportion are called the extremes, while the second and third terms are called the means, and the fourth term is called the fourth proportional... | |
 | Walter Randall Marsh - Algebra - 1905 - 446 pages
...antecedents and consequents of the ratios are called the antecedents and consequents of the proportion. The first and fourth terms of a proportion are called the extremes and the second and third terms are called the means. The terms of a proportion are said to be proportional. The fourth term... | |
 | Elmer Adelbert Lyman - Arithmetic - 1905 - 268 pages
...' Ol K 1 CC Check by putting 2 j for x, then ±t.»|, or ±f== 2. o 7 2iL 7 226. The first and last terms of a proportion are called the extremes, and the second and third terms the means. 227. In any proportion the product of the means is equal to the product of the extremes.... | |
 | International Correspondence Schools - Arithmetic - 1906 - 576 pages
...ratio of the first term to the second term equals the ratio of the third term to the fourth term. 135. The first and fourth terms of a proportion are called the extremes, and the second and third terms, the meaiis. Thus, in the foregoing proportion, 8 and 3 are the extremes and 4 and 6 are the... | |
 | William James Milne - Arithmetic - 1906 - 364 pages
...equal to the ratio of 8 to 12 " ; or more briefly, "4 is to 6 as 8 is to 12." 503. The first and last terms of a proportion are called the extremes, and the second and third terms the means. In 4 : 6 = 8 : 12, the extremes are 4 and 12 ; the means, 6 and 8. 504. 1. In the... | |
 | William James Milne - Arithmetic - 1906 - 364 pages
...equal to the ratio of 8 to 12 " ; or more briefly, "4 is to 6 as 8 is to 12." 503. The first and last terms of a proportion are called the extremes, and the second and third terms the means. In 4 : 6 = 8 : 12, the extremes are 4 and 12 ; the means, 6 and 8. 504. 1. In the... | |
 | John Marvin Colaw, Frank Williamson Duke - Arithmetic - 1906 - 408 pages
...equations (Art. 345) and to fractions apply also to proportions. 435. The first and fourth numbers of a proportion are called the extremes, and the second and third the means. Name the extremes and the means in the proportion 436. I. Consider the proportion 3 : 8... | |
 | Charles Hamilton Ashton, Walter Randall Marsh - Algebra - 1907 - 304 pages
...antecedents and consequents of the ratios are called the antecedents and consequents of the proportion. The first and fourth terms of a proportion are called the extremes and the second and third terms are called the means. The terms of a proportion are said to be proportional. The fourth term... | |
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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. 
