Finding the Fourth Proportional to 284,156.97, 392,134.68 and 156,832.58
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Solution
The fourth proportional to 284,156.97, 392,134.68 and 156,832.58 is: 216,427.88
Step by Step Solution
- Step 1: Write the proportion equation
284,156.97 : 392,134.68 = 156,832.58 : x - Step 2: Convert to fraction form
284,156.97/392,134.68 = 156,832.58/x - Step 3: Cross multiply
284,156.97x = 392,134.68 × 156,832.58 - Step 4: Simplify right side
284,156.97x = 61,499,491,611.20 - Step 5: Solve for x
x = 61,499,491,611.20/284,156.97 - Step 6: Final answer
x = 216,427.88
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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.