Finding the Fourth Proportional to 385,720.12, 532,248.26 and 222,374.80
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Solution
The fourth proportional to 385,720.12, 532,248.26 and 222,374.80 is: 306,850.99
Step by Step Solution
- Step 1: Write the proportion equation
385,720.12 : 532,248.26 = 222,374.80 : x - Step 2: Convert to fraction form
385,720.12/532,248.26 = 222,374.80/x - Step 3: Cross multiply
385,720.12x = 532,248.26 × 222,374.80 - Step 4: Simplify right side
385,720.12x = 118,358,600,367.85 - Step 5: Solve for x
x = 118,358,600,367.85/385,720.12 - Step 6: Final answer
x = 306,850.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.