Finding the Fourth Proportional to 284,731.05, 392,937.05 and 157,414.85
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Solution
The fourth proportional to 284,731.05, 392,937.05 and 157,414.85 is: 217,237.02
Step by Step Solution
- Step 1: Write the proportion equation
284,731.05 : 392,937.05 = 157,414.85 : x - Step 2: Convert to fraction form
284,731.05/392,937.05 = 157,414.85/x - Step 3: Cross multiply
284,731.05x = 392,937.05 × 157,414.85 - Step 4: Simplify right side
284,731.05x = 61,854,125,508.45 - Step 5: Solve for x
x = 61,854,125,508.45/284,731.05 - Step 6: Final answer
x = 217,237.02
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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.