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Finding the Fourth Proportional to 363.38, 501.23 and 215.91

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Solution

The fourth proportional to 363.38, 501.23 and 215.91 is: 297.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.38 : 501.23 = 215.91 : x
  2. Step 2: Convert to fraction form
    363.38/501.23 = 215.91/x
  3. Step 3: Cross multiply
    363.38x = 501.23 × 215.91
  4. Step 4: Simplify right side
    363.38x = 108,221.11
  5. Step 5: Solve for x
    x = 108,221.11/363.38
  6. Step 6: Final answer
    x = 297.82

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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.