 | George Albert Wentworth - 1898 - 424 pages
...means, and is read, the ratio of 6 to 3 is equal to the ratio of 15 to 9. 386. Means and Extremes. The first and last terms of a proportion are called the extremes, and the two middle terms are called the means. 387. Test of a Proportion. When four numbers are in... | |
 | Wooster Woodruff Beman, David Eugene Smith - Geometry, Modern - 1899 - 265 pages
...proportion being written a:b: :c:d. The double colon is not, however, as extensively used as formerly. 228. The first and last terms of a proportion are called the extremes, and the other terms the means. Thus in the proportion 2 : 3 = 6 : 9, 3 and 6 are the means and 2 and... | |
 | Charles Austin Hobbs - Geometry, Plane - 1899 - 266 pages
...proportion are called the extremes, and the second and third terms are called the means. The fourth term is said to be a fourth proportional to the other three. When the means of a proportion are equal, either mean is said to be a mean proportional between the... | |
 | Wooster Woodruff Beman, David Eugene Smith - Geometry - 1899 - 400 pages
...being written a: b : :c:d. The double colon is not, however, as extensively used as formerly. 228. The first and last terms of a proportion are called the extremes, and the other terms the means. Thus in the proportion 2 :3 = 6 :9, 3 and 6 are the means and 2 and... | |
 | Frank Castle - Mathematics - 1899 - 424 pages
...The proportion is written as 6 : 8 : : 15 : 20, and this should be read as 6 is to 8 as 15 is to 20. The first and last terms of a proportion are called the extremes, and the second and third terms the means ; thus 6 and 20 are the extremes, and 8 and 15 are the means... | |
 | Joseph Ray - Arithmetic - 1903 - 366 pages
...proportion are called the extremes. The second and third terms of a proportion are called the means. The last term is said to be a fourth proportional to the other three taken in order. Thus, in the proportion 2 : 4 : : 3 : 6, the extremes are 2 and 6 ; the means are 4... | |
 | David Eugene Smith - Arithmetic - 1905 - 646 pages
...diameter of a pipe whose circumference is to that of the first as 2.6 : 3.42? 426. Extremes and means. The first and last terms of a proportion are called the extremes; the second and third, the means. 427. It is an interesting property of proportion, as seen in a case like... | |
 | David Eugene Smith - Arithmetic - 1905 - 420 pages
...diameter of a pipe whose circumference is to that of the first as 2.6 : 3.42? 100. Extremes and means. The first and last terms of a proportion are called the extremes; the second and third, the means. 101. It is an interesting property of proportion, as seen in a case like... | |
 | David Eugene Smith - Arithmetic - 1905 - 550 pages
...denominator_indicates a root and the numerator a power ; thus, 8^ means v'S2 = \/64 = 4. Extremes and means. The first and last terms of a proportion are called the extremes ; the second and third, the means. Face of note. The principal mentioned in a note is called the face of... | |
 | Elmer Adelbert Lyman - Arithmetic - 1905 - 270 pages
...one can be found. If | =|, then, x =3 xf »2f Check by putting 2} for x, then ^ »|, or ij - 1 226. 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... | |
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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. 
