Finding the Fourth Proportional to 393,060.87, 542,425.84 and 223,304.31
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Solution
The fourth proportional to 393,060.87, 542,425.84 and 223,304.31 is: 308,160.99
Step by Step Solution
- Step 1: Write the proportion equation
393,060.87 : 542,425.84 = 223,304.31 : x - Step 2: Convert to fraction form
393,060.87/542,425.84 = 223,304.31/x - Step 3: Cross multiply
393,060.87x = 542,425.84 × 223,304.31 - Step 4: Simplify right side
393,060.87x = 121,126,027,369.11 - Step 5: Solve for x
x = 121,126,027,369.11/393,060.87 - Step 6: Final answer
x = 308,160.99
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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.