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Finding the Fourth Proportional to 254.38, 381.75 and 110.14

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Solution

The fourth proportional to 254.38, 381.75 and 110.14 is: 165.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    254.38 : 381.75 = 110.14 : x
  2. Step 2: Convert to fraction form
    254.38/381.75 = 110.14/x
  3. Step 3: Cross multiply
    254.38x = 381.75 × 110.14
  4. Step 4: Simplify right side
    254.38x = 42,045.95
  5. Step 5: Solve for x
    x = 42,045.95/254.38
  6. Step 6: Final answer
    x = 165.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.