Finding the Fourth Proportional to 288,579.20, 398,361.92 and 175,438.08
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Solution
The fourth proportional to 288,579.20, 398,361.92 and 175,438.08 is: 242,179.10
Step by Step Solution
- Step 1: Write the proportion equation
288,579.20 : 398,361.92 = 175,438.08 : x - Step 2: Convert to fraction form
288,579.20/398,361.92 = 175,438.08/x - Step 3: Cross multiply
288,579.20x = 398,361.92 × 175,438.08 - Step 4: Simplify right side
288,579.20x = 69,887,850,389.91 - Step 5: Solve for x
x = 69,887,850,389.91/288,579.20 - Step 6: Final answer
x = 242,179.10
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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.