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Finding the Fourth Proportional to 251.32, 374.05 and 248.52

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Solution

The fourth proportional to 251.32, 374.05 and 248.52 is: 369.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.32 : 374.05 = 248.52 : x
  2. Step 2: Convert to fraction form
    251.32/374.05 = 248.52/x
  3. Step 3: Cross multiply
    251.32x = 374.05 × 248.52
  4. Step 4: Simplify right side
    251.32x = 92,958.91
  5. Step 5: Solve for x
    x = 92,958.91/251.32
  6. Step 6: Final answer
    x = 369.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.