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Finding the Fourth Proportional to 381.27, 525.96 and 248.52

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Solution

The fourth proportional to 381.27, 525.96 and 248.52 is: 342.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    381.27 : 525.96 = 248.52 : x
  2. Step 2: Convert to fraction form
    381.27/525.96 = 248.52/x
  3. Step 3: Cross multiply
    381.27x = 525.96 × 248.52
  4. Step 4: Simplify right side
    381.27x = 130,711.58
  5. Step 5: Solve for x
    x = 130,711.58/381.27
  6. Step 6: Final answer
    x = 342.83

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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.