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Finding the Fourth Proportional to 251.34, 375.05 and 225.38

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Solution

The fourth proportional to 251.34, 375.05 and 225.38 is: 336.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.34 : 375.05 = 225.38 : x
  2. Step 2: Convert to fraction form
    251.34/375.05 = 225.38/x
  3. Step 3: Cross multiply
    251.34x = 375.05 × 225.38
  4. Step 4: Simplify right side
    251.34x = 84,525.77
  5. Step 5: Solve for x
    x = 84,525.77/251.34
  6. Step 6: Final answer
    x = 336.30

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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.