Finding the Fourth Proportional to 245,479.39, 338,731.81 and 136,557.99
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Solution
The fourth proportional to 245,479.39, 338,731.81 and 136,557.99 is: 188,433.48
Step by Step Solution
- Step 1: Write the proportion equation
245,479.39 : 338,731.81 = 136,557.99 : x - Step 2: Convert to fraction form
245,479.39/338,731.81 = 136,557.99/x - Step 3: Cross multiply
245,479.39x = 338,731.81 × 136,557.99 - Step 4: Simplify right side
245,479.39x = 46,256,535,733.95 - Step 5: Solve for x
x = 46,256,535,733.95/245,479.39 - Step 6: Final answer
x = 188,433.48
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.