Home / 431,723.08-647,586.17-132,202.45

Finding the Fourth Proportional to 431,723.08, 647,586.17 and 132,202.45

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Solution

The fourth proportional to 431,723.08, 647,586.17 and 132,202.45 is: 198,304.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,723.08 : 647,586.17 = 132,202.45 : x
  2. Step 2: Convert to fraction form
    431,723.08/647,586.17 = 132,202.45/x
  3. Step 3: Cross multiply
    431,723.08x = 647,586.17 × 132,202.45
  4. Step 4: Simplify right side
    431,723.08x = 85,612,474,361.17
  5. Step 5: Solve for x
    x = 85,612,474,361.17/431,723.08
  6. Step 6: Final answer
    x = 198,304.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.