Finding the Fourth Proportional to 391,370.40, 587,302.65 and 166,730.94
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Solution
The fourth proportional to 391,370.40, 587,302.65 and 166,730.94 is: 250,201.66
Step by Step Solution
- Step 1: Write the proportion equation
391,370.40 : 587,302.65 = 166,730.94 : x - Step 2: Convert to fraction form
391,370.40/587,302.65 = 166,730.94/x - Step 3: Cross multiply
391,370.40x = 587,302.65 × 166,730.94 - Step 4: Simplify right side
391,370.40x = 97,921,522,898.99 - Step 5: Solve for x
x = 97,921,522,898.99/391,370.40 - Step 6: Final answer
x = 250,201.66
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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.