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Finding the Fourth Proportional to 251.26, 374.87 and 225.34

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Solution

The fourth proportional to 251.26, 374.87 and 225.34 is: 336.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.26 : 374.87 = 225.34 : x
  2. Step 2: Convert to fraction form
    251.26/374.87 = 225.34/x
  3. Step 3: Cross multiply
    251.26x = 374.87 × 225.34
  4. Step 4: Simplify right side
    251.26x = 84,473.21
  5. Step 5: Solve for x
    x = 84,473.21/251.26
  6. Step 6: Final answer
    x = 336.20

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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.