Finding the Fourth Proportional to 288,612.20, 398,407.46 and 175,471.08
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Solution
The fourth proportional to 288,612.20, 398,407.46 and 175,471.08 is: 242,224.64
Step by Step Solution
- Step 1: Write the proportion equation
288,612.20 : 398,407.46 = 175,471.08 : x - Step 2: Convert to fraction form
288,612.20/398,407.46 = 175,471.08/x - Step 3: Cross multiply
288,612.20x = 398,407.46 × 175,471.08 - Step 4: Simplify right side
288,612.20x = 69,908,987,286.26 - Step 5: Solve for x
x = 69,908,987,286.26/288,612.20 - Step 6: Final answer
x = 242,224.64
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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.