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Finding the Fourth Proportional to 251.76, 349.62 and 249.36

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Solution

The fourth proportional to 251.76, 349.62 and 249.36 is: 346.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.76 : 349.62 = 249.36 : x
  2. Step 2: Convert to fraction form
    251.76/349.62 = 249.36/x
  3. Step 3: Cross multiply
    251.76x = 349.62 × 249.36
  4. Step 4: Simplify right side
    251.76x = 87,181.24
  5. Step 5: Solve for x
    x = 87,181.24/251.76
  6. Step 6: Final answer
    x = 346.29

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.