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Finding the Fourth Proportional to 252.86, 379.13 and 231.37

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Solution

The fourth proportional to 252.86, 379.13 and 231.37 is: 346.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.86 : 379.13 = 231.37 : x
  2. Step 2: Convert to fraction form
    252.86/379.13 = 231.37/x
  3. Step 3: Cross multiply
    252.86x = 379.13 × 231.37
  4. Step 4: Simplify right side
    252.86x = 87,719.31
  5. Step 5: Solve for x
    x = 87,719.31/252.86
  6. Step 6: Final answer
    x = 346.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.