Finding the Fourth Proportional to 431,489.58, 647,327.79 and 165,250.08
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Solution
The fourth proportional to 431,489.58, 647,327.79 and 165,250.08 is: 247,910.90
Step by Step Solution
- Step 1: Write the proportion equation
431,489.58 : 647,327.79 = 165,250.08 : x - Step 2: Convert to fraction form
431,489.58/647,327.79 = 165,250.08/x - Step 3: Cross multiply
431,489.58x = 647,327.79 × 165,250.08 - Step 4: Simplify right side
431,489.58x = 106,970,969,083.72 - Step 5: Solve for x
x = 106,970,969,083.72/431,489.58 - Step 6: Final answer
x = 247,910.90
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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.