Finding the Fourth Proportional to 379,717.20, 569,575.80 and 202,132.80
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Solution
The fourth proportional to 379,717.20, 569,575.80 and 202,132.80 is: 303,199.20
Step by Step Solution
- Step 1: Write the proportion equation
379,717.20 : 569,575.80 = 202,132.80 : x - Step 2: Convert to fraction form
379,717.20/569,575.80 = 202,132.80/x - Step 3: Cross multiply
379,717.20x = 569,575.80 × 202,132.80 - Step 4: Simplify right side
379,717.20x = 115,129,951,266.24 - Step 5: Solve for x
x = 115,129,951,266.24/379,717.20 - Step 6: Final answer
x = 303,199.20
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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.