Finding the Fourth Proportional to 577,155.87, 865,733.81 and 156,431.74
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Solution
The fourth proportional to 577,155.87, 865,733.81 and 156,431.74 is: 234,647.61
Step by Step Solution
- Step 1: Write the proportion equation
577,155.87 : 865,733.81 = 156,431.74 : x - Step 2: Convert to fraction form
577,155.87/865,733.81 = 156,431.74/x - Step 3: Cross multiply
577,155.87x = 865,733.81 × 156,431.74 - Step 4: Simplify right side
577,155.87x = 135,428,246,275.13 - Step 5: Solve for x
x = 135,428,246,275.13/577,155.87 - Step 6: Final answer
x = 234,647.61
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.