Finding the Fourth Proportional to 351,471.80, 527,207.70 and 257,468.60
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Solution
The fourth proportional to 351,471.80, 527,207.70 and 257,468.60 is: 386,202.90
Step by Step Solution
- Step 1: Write the proportion equation
351,471.80 : 527,207.70 = 257,468.60 : x - Step 2: Convert to fraction form
351,471.80/527,207.70 = 257,468.60/x - Step 3: Cross multiply
351,471.80x = 527,207.70 × 257,468.60 - Step 4: Simplify right side
351,471.80x = 135,739,428,428.22 - Step 5: Solve for x
x = 135,739,428,428.22/351,471.80 - Step 6: Final answer
x = 386,202.90
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1.5x scale
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.