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Finding the Fourth Proportional to 251.24, 371.56 and 251.24

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Solution

The fourth proportional to 251.24, 371.56 and 251.24 is: 371.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.24 : 371.56 = 251.24 : x
  2. Step 2: Convert to fraction form
    251.24/371.56 = 251.24/x
  3. Step 3: Cross multiply
    251.24x = 371.56 × 251.24
  4. Step 4: Simplify right side
    251.24x = 93,350.73
  5. Step 5: Solve for x
    x = 93,350.73/251.24
  6. Step 6: Final answer
    x = 371.56

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.