Gore, James Howard, 1856-1939 · New York, Longmans, Green, and co. · leaf 110
§237.] RATIO AND PROPORTION. 97 PROPOSITION XX. PROBLEM. 235. To divide a given straight line into parts proportional toany number of given lines. … m Let AB, m, n, and o be given straight lines. It is required to divide AB into parts proportional to thegiven lines m, n, and o. It is known (from 213) that lines drawn parallel to the baseof a triangle divide the other two sides proportionally. Therefore, form with AB a triangle by drawing an…
Geometry
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