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Finding the Fourth Proportional to 251.82, 375.11 and 248.58

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Solution

The fourth proportional to 251.82, 375.11 and 248.58 is: 370.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.82 : 375.11 = 248.58 : x
  2. Step 2: Convert to fraction form
    251.82/375.11 = 248.58/x
  3. Step 3: Cross multiply
    251.82x = 375.11 × 248.58
  4. Step 4: Simplify right side
    251.82x = 93,243.60
  5. Step 5: Solve for x
    x = 93,243.60/251.82
  6. Step 6: Final answer
    x = 370.28

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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.