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Finding the Fourth Proportional to 144.85, 218.06 and 132.73

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Solution

The fourth proportional to 144.85, 218.06 and 132.73 is: 199.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    144.85 : 218.06 = 132.73 : x
  2. Step 2: Convert to fraction form
    144.85/218.06 = 132.73/x
  3. Step 3: Cross multiply
    144.85x = 218.06 × 132.73
  4. Step 4: Simplify right side
    144.85x = 28,943.10
  5. Step 5: Solve for x
    x = 28,943.10/144.85
  6. Step 6: Final answer
    x = 199.81

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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.