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Finding the Fourth Proportional to 462.41, 638.13 and 265.91

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Solution

The fourth proportional to 462.41, 638.13 and 265.91 is: 366.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    462.41 : 638.13 = 265.91 : x
  2. Step 2: Convert to fraction form
    462.41/638.13 = 265.91/x
  3. Step 3: Cross multiply
    462.41x = 638.13 × 265.91
  4. Step 4: Simplify right side
    462.41x = 169,687.74
  5. Step 5: Solve for x
    x = 169,687.74/462.41
  6. Step 6: Final answer
    x = 366.97

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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.