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Finding the Fourth Proportional to 251.75, 374.97 and 240.50

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Solution

The fourth proportional to 251.75, 374.97 and 240.50 is: 358.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.75 : 374.97 = 240.50 : x
  2. Step 2: Convert to fraction form
    251.75/374.97 = 240.50/x
  3. Step 3: Cross multiply
    251.75x = 374.97 × 240.50
  4. Step 4: Simplify right side
    251.75x = 90,180.02
  5. Step 5: Solve for x
    x = 90,180.02/251.75
  6. Step 6: Final answer
    x = 358.22

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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.