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Finding the Fourth Proportional to 251.72, 375.22 and 224.16

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Solution

The fourth proportional to 251.72, 375.22 and 224.16 is: 334.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.72 : 375.22 = 224.16 : x
  2. Step 2: Convert to fraction form
    251.72/375.22 = 224.16/x
  3. Step 3: Cross multiply
    251.72x = 375.22 × 224.16
  4. Step 4: Simplify right side
    251.72x = 84,109.32
  5. Step 5: Solve for x
    x = 84,109.32/251.72
  6. Step 6: Final answer
    x = 334.14

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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.