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Finding the Fourth Proportional to 182.18, 251.41 and 140.66

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Solution

The fourth proportional to 182.18, 251.41 and 140.66 is: 194.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    182.18 : 251.41 = 140.66 : x
  2. Step 2: Convert to fraction form
    182.18/251.41 = 140.66/x
  3. Step 3: Cross multiply
    182.18x = 251.41 × 140.66
  4. Step 4: Simplify right side
    182.18x = 35,363.33
  5. Step 5: Solve for x
    x = 35,363.33/182.18
  6. Step 6: Final answer
    x = 194.12

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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.