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Finding the Fourth Proportional to 457.27, 626.18 and 432.30

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Solution

The fourth proportional to 457.27, 626.18 and 432.30 is: 591.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    457.27 : 626.18 = 432.30 : x
  2. Step 2: Convert to fraction form
    457.27/626.18 = 432.30/x
  3. Step 3: Cross multiply
    457.27x = 626.18 × 432.30
  4. Step 4: Simplify right side
    457.27x = 270,697.61
  5. Step 5: Solve for x
    x = 270,697.61/457.27
  6. Step 6: Final answer
    x = 591.99

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.