Finding the Fourth Proportional to 351,861.60, 527,787.84 and 85,622.28
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Solution
The fourth proportional to 351,861.60, 527,787.84 and 85,622.28 is: 128,432.31
Step by Step Solution
- Step 1: Write the proportion equation
351,861.60 : 527,787.84 = 85,622.28 : x - Step 2: Convert to fraction form
351,861.60/527,787.84 = 85,622.28/x - Step 3: Cross multiply
351,861.60x = 527,787.84 × 85,622.28 - Step 4: Simplify right side
351,861.60x = 45,190,398,217.08 - Step 5: Solve for x
x = 45,190,398,217.08/351,861.60 - Step 6: Final answer
x = 128,432.31
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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.