Finding the Fourth Proportional to 379,387.38, 523,663.68 and 250,419.99
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Solution
The fourth proportional to 379,387.38, 523,663.68 and 250,419.99 is: 345,651.60
Step by Step Solution
- Step 1: Write the proportion equation
379,387.38 : 523,663.68 = 250,419.99 : x - Step 2: Convert to fraction form
379,387.38/523,663.68 = 250,419.99/x - Step 3: Cross multiply
379,387.38x = 523,663.68 × 250,419.99 - Step 4: Simplify right side
379,387.38x = 131,135,853,508.96 - Step 5: Solve for x
x = 131,135,853,508.96/379,387.38 - Step 6: Final answer
x = 345,651.60
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1.5x scale
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.