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Finding the Fourth Proportional to 250.88, 346.56 and 238.73

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Solution

The fourth proportional to 250.88, 346.56 and 238.73 is: 329.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.88 : 346.56 = 238.73 : x
  2. Step 2: Convert to fraction form
    250.88/346.56 = 238.73/x
  3. Step 3: Cross multiply
    250.88x = 346.56 × 238.73
  4. Step 4: Simplify right side
    250.88x = 82,734.27
  5. Step 5: Solve for x
    x = 82,734.27/250.88
  6. Step 6: Final answer
    x = 329.78

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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.