Finding the Fourth Proportional to 288,844.92, 398,643.12 and 161,527.68
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Solution
The fourth proportional to 288,844.92, 398,643.12 and 161,527.68 is: 222,928.96
Step by Step Solution
- Step 1: Write the proportion equation
288,844.92 : 398,643.12 = 161,527.68 : x - Step 2: Convert to fraction form
288,844.92/398,643.12 = 161,527.68/x - Step 3: Cross multiply
288,844.92x = 398,643.12 × 161,527.68 - Step 4: Simplify right side
288,844.92x = 64,391,898,321.56 - Step 5: Solve for x
x = 64,391,898,321.56/288,844.92 - Step 6: Final answer
x = 222,928.96
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1.5x scale
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.