Finding the Fourth Proportional to 284,716.20, 392,897.88 and 163,876.08
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Solution
The fourth proportional to 284,716.20, 392,897.88 and 163,876.08 is: 226,142.96
Step by Step Solution
- Step 1: Write the proportion equation
284,716.20 : 392,897.88 = 163,876.08 : x - Step 2: Convert to fraction form
284,716.20/392,897.88 = 163,876.08/x - Step 3: Cross multiply
284,716.20x = 392,897.88 × 163,876.08 - Step 4: Simplify right side
284,716.20x = 64,386,564,414.71 - Step 5: Solve for x
x = 64,386,564,414.71/284,716.20 - Step 6: Final answer
x = 226,142.96
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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.