Finding the Fourth Proportional to 288,721.44, 398,419.43 and 159,652.44
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Solution
The fourth proportional to 288,721.44, 398,419.43 and 159,652.44 is: 220,311.43
Step by Step Solution
- Step 1: Write the proportion equation
288,721.44 : 398,419.43 = 159,652.44 : x - Step 2: Convert to fraction form
288,721.44/398,419.43 = 159,652.44/x - Step 3: Cross multiply
288,721.44x = 398,419.43 × 159,652.44 - Step 4: Simplify right side
288,721.44x = 63,608,633,344.65 - Step 5: Solve for x
x = 63,608,633,344.65/288,721.44 - Step 6: Final answer
x = 220,311.43
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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.