Finding the Fourth Proportional to 288,889.60, 398,687.84 and 161,576.96
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Solution
The fourth proportional to 288,889.60, 398,687.84 and 161,576.96 is: 222,987.50
Step by Step Solution
- Step 1: Write the proportion equation
288,889.60 : 398,687.84 = 161,576.96 : x - Step 2: Convert to fraction form
288,889.60/398,687.84 = 161,576.96/x - Step 3: Cross multiply
288,889.60x = 398,687.84 × 161,576.96 - Step 4: Simplify right side
288,889.60x = 64,418,769,176.17 - Step 5: Solve for x
x = 64,418,769,176.17/288,889.60 - Step 6: Final answer
x = 222,987.50
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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.