Finding the Fourth Proportional to 288,685.71, 398,378.04 and 159,621.96
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Solution
The fourth proportional to 288,685.71, 398,378.04 and 159,621.96 is: 220,273.75
Step by Step Solution
- Step 1: Write the proportion equation
288,685.71 : 398,378.04 = 159,621.96 : x - Step 2: Convert to fraction form
288,685.71/398,378.04 = 159,621.96/x - Step 3: Cross multiply
288,685.71x = 398,378.04 × 159,621.96 - Step 4: Simplify right side
288,685.71x = 63,589,882,967.18 - Step 5: Solve for x
x = 63,589,882,967.18/288,685.71 - Step 6: Final answer
x = 220,273.75
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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.