Finding the Fourth Proportional to 391,451.40, 587,177.10 and 110,971.08
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Solution
The fourth proportional to 391,451.40, 587,177.10 and 110,971.08 is: 166,456.62
Step by Step Solution
- Step 1: Write the proportion equation
391,451.40 : 587,177.10 = 110,971.08 : x - Step 2: Convert to fraction form
391,451.40/587,177.10 = 110,971.08/x - Step 3: Cross multiply
391,451.40x = 587,177.10 × 110,971.08 - Step 4: Simplify right side
391,451.40x = 65,159,676,938.27 - Step 5: Solve for x
x = 65,159,676,938.27/391,451.40 - Step 6: Final answer
x = 166,456.62
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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.