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Finding the Fourth Proportional to 182.14, 251.31 and 103.46

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Solution

The fourth proportional to 182.14, 251.31 and 103.46 is: 142.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    182.14 : 251.31 = 103.46 : x
  2. Step 2: Convert to fraction form
    182.14/251.31 = 103.46/x
  3. Step 3: Cross multiply
    182.14x = 251.31 × 103.46
  4. Step 4: Simplify right side
    182.14x = 26,000.53
  5. Step 5: Solve for x
    x = 26,000.53/182.14
  6. Step 6: Final answer
    x = 142.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.