Finding the Fourth Proportional to 288,535.12, 398,165.67 and 161,207.98
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Solution
The fourth proportional to 288,535.12, 398,165.67 and 161,207.98 is: 222,459.86
Step by Step Solution
- Step 1: Write the proportion equation
288,535.12 : 398,165.67 = 161,207.98 : x - Step 2: Convert to fraction form
288,535.12/398,165.67 = 161,207.98/x - Step 3: Cross multiply
288,535.12x = 398,165.67 × 161,207.98 - Step 4: Simplify right side
288,535.12x = 64,187,483,366.05 - Step 5: Solve for x
x = 64,187,483,366.05/288,535.12 - Step 6: Final answer
x = 222,459.86
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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.