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Finding the Fourth Proportional to 462.41, 638.97 and 344.86

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Solution

The fourth proportional to 462.41, 638.97 and 344.86 is: 476.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    462.41 : 638.97 = 344.86 : x
  2. Step 2: Convert to fraction form
    462.41/638.97 = 344.86/x
  3. Step 3: Cross multiply
    462.41x = 638.97 × 344.86
  4. Step 4: Simplify right side
    462.41x = 220,354.70
  5. Step 5: Solve for x
    x = 220,354.70/462.41
  6. Step 6: Final answer
    x = 476.53

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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.