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Finding the Fourth Proportional to 381.74, 527.10 and 234.44

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Solution

The fourth proportional to 381.74, 527.10 and 234.44 is: 323.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    381.74 : 527.10 = 234.44 : x
  2. Step 2: Convert to fraction form
    381.74/527.10 = 234.44/x
  3. Step 3: Cross multiply
    381.74x = 527.10 × 234.44
  4. Step 4: Simplify right side
    381.74x = 123,573.32
  5. Step 5: Solve for x
    x = 123,573.32/381.74
  6. Step 6: Final answer
    x = 323.71

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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.