Finding the Fourth Proportional to 392,603.20, 588,904.80 and 97,115.20
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Solution
The fourth proportional to 392,603.20, 588,904.80 and 97,115.20 is: 145,672.80
Step by Step Solution
- Step 1: Write the proportion equation
392,603.20 : 588,904.80 = 97,115.20 : x - Step 2: Convert to fraction form
392,603.20/588,904.80 = 97,115.20/x - Step 3: Cross multiply
392,603.20x = 588,904.80 × 97,115.20 - Step 4: Simplify right side
392,603.20x = 57,191,607,432.96 - Step 5: Solve for x
x = 57,191,607,432.96/392,603.20 - Step 6: Final answer
x = 145,672.80
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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.