Finding the Fourth Proportional to 288,589.11, 398,252.34 and 161,264.71
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Solution
The fourth proportional to 288,589.11, 398,252.34 and 161,264.71 is: 222,544.95
Step by Step Solution
- Step 1: Write the proportion equation
288,589.11 : 398,252.34 = 161,264.71 : x - Step 2: Convert to fraction form
288,589.11/398,252.34 = 161,264.71/x - Step 3: Cross multiply
288,589.11x = 398,252.34 × 161,264.71 - Step 4: Simplify right side
288,589.11x = 64,224,048,116.92 - Step 5: Solve for x
x = 64,224,048,116.92/288,589.11 - Step 6: Final answer
x = 222,544.95
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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.