Finding the Fourth Proportional to 288,621.44, 398,296.28 and 161,296.96
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Solution
The fourth proportional to 288,621.44, 398,296.28 and 161,296.96 is: 222,589.07
Step by Step Solution
- Step 1: Write the proportion equation
288,621.44 : 398,296.28 = 161,296.96 : x - Step 2: Convert to fraction form
288,621.44/398,296.28 = 161,296.96/x - Step 3: Cross multiply
288,621.44x = 398,296.28 × 161,296.96 - Step 4: Simplify right side
288,621.44x = 64,243,979,143.31 - Step 5: Solve for x
x = 64,243,979,143.31/288,621.44 - Step 6: Final answer
x = 222,589.07
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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.