Finding the Fourth Proportional to 253,270.96, 379,717.68 and 84,691.60
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Solution
The fourth proportional to 253,270.96, 379,717.68 and 84,691.60 is: 126,974.28
Step by Step Solution
- Step 1: Write the proportion equation
253,270.96 : 379,717.68 = 84,691.60 : x - Step 2: Convert to fraction form
253,270.96/379,717.68 = 84,691.60/x - Step 3: Cross multiply
253,270.96x = 379,717.68 × 84,691.60 - Step 4: Simplify right side
253,270.96x = 32,158,897,867.49 - Step 5: Solve for x
x = 32,158,897,867.49/253,270.96 - Step 6: Final answer
x = 126,974.28
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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.