Finding the Fourth Proportional to 385,174.26, 577,962.85 and 157,638.78
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Solution
The fourth proportional to 385,174.26, 577,962.85 and 157,638.78 is: 236,540.62
Step by Step Solution
- Step 1: Write the proportion equation
385,174.26 : 577,962.85 = 157,638.78 : x - Step 2: Convert to fraction form
385,174.26/577,962.85 = 157,638.78/x - Step 3: Cross multiply
385,174.26x = 577,962.85 × 157,638.78 - Step 4: Simplify right side
385,174.26x = 91,109,358,165.23 - Step 5: Solve for x
x = 91,109,358,165.23/385,174.26 - Step 6: Final answer
x = 236,540.62
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.