Finding the Fourth Proportional to 395,691.12, 546,041.88 and 225,892.08
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Solution
The fourth proportional to 395,691.12, 546,041.88 and 225,892.08 is: 311,724.30
Step by Step Solution
- Step 1: Write the proportion equation
395,691.12 : 546,041.88 = 225,892.08 : x - Step 2: Convert to fraction form
395,691.12/546,041.88 = 225,892.08/x - Step 3: Cross multiply
395,691.12x = 546,041.88 × 225,892.08 - Step 4: Simplify right side
395,691.12x = 123,346,536,040.31 - Step 5: Solve for x
x = 123,346,536,040.31/395,691.12 - Step 6: Final answer
x = 311,724.30
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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.