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Finding the Fourth Proportional to 252.92, 346.90 and 238.98

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Solution

The fourth proportional to 252.92, 346.90 and 238.98 is: 327.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.92 : 346.90 = 238.98 : x
  2. Step 2: Convert to fraction form
    252.92/346.90 = 238.98/x
  3. Step 3: Cross multiply
    252.92x = 346.90 × 238.98
  4. Step 4: Simplify right side
    252.92x = 82,902.16
  5. Step 5: Solve for x
    x = 82,902.16/252.92
  6. Step 6: Final answer
    x = 327.78

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.