Finding the Fourth Proportional to 428,381.70, 591,170.17 and 237,398.26
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Solution
The fourth proportional to 428,381.70, 591,170.17 and 237,398.26 is: 327,611.50
Step by Step Solution
- Step 1: Write the proportion equation
428,381.70 : 591,170.17 = 237,398.26 : x - Step 2: Convert to fraction form
428,381.70/591,170.17 = 237,398.26/x - Step 3: Cross multiply
428,381.70x = 591,170.17 × 237,398.26 - Step 4: Simplify right side
428,381.70x = 140,342,769,721.90 - Step 5: Solve for x
x = 140,342,769,721.90/428,381.70 - Step 6: Final answer
x = 327,611.50
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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.