Finding the Fourth Proportional to 391,469.70, 587,204.55 and 181,517.70
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Solution
The fourth proportional to 391,469.70, 587,204.55 and 181,517.70 is: 272,276.55
Step by Step Solution
- Step 1: Write the proportion equation
391,469.70 : 587,204.55 = 181,517.70 : x - Step 2: Convert to fraction form
391,469.70/587,204.55 = 181,517.70/x - Step 3: Cross multiply
391,469.70x = 587,204.55 × 181,517.70 - Step 4: Simplify right side
391,469.70x = 106,588,019,345.54 - Step 5: Solve for x
x = 106,588,019,345.54/391,469.70 - Step 6: Final answer
x = 272,276.55
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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.