Finding the Fourth Proportional to 272,372.28, 409,225.68 and 257,265.60
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Solution
The fourth proportional to 272,372.28, 409,225.68 and 257,265.60 is: 386,528.65
Step by Step Solution
- Step 1: Write the proportion equation
272,372.28 : 409,225.68 = 257,265.60 : x - Step 2: Convert to fraction form
272,372.28/409,225.68 = 257,265.60/x - Step 3: Cross multiply
272,372.28x = 409,225.68 × 257,265.60 - Step 4: Simplify right side
272,372.28x = 105,279,690,100.61 - Step 5: Solve for x
x = 105,279,690,100.61/272,372.28 - Step 6: Final answer
x = 386,528.65
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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.