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Finding the Fourth Proportional to 252.56, 381.03 and 251.88

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Solution

The fourth proportional to 252.56, 381.03 and 251.88 is: 380.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.56 : 381.03 = 251.88 : x
  2. Step 2: Convert to fraction form
    252.56/381.03 = 251.88/x
  3. Step 3: Cross multiply
    252.56x = 381.03 × 251.88
  4. Step 4: Simplify right side
    252.56x = 95,973.84
  5. Step 5: Solve for x
    x = 95,973.84/252.56
  6. Step 6: Final answer
    x = 380.01

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.