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Finding the Fourth Proportional to 144.73, 216.57 and 125.53

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Solution

The fourth proportional to 144.73, 216.57 and 125.53 is: 187.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    144.73 : 216.57 = 125.53 : x
  2. Step 2: Convert to fraction form
    144.73/216.57 = 125.53/x
  3. Step 3: Cross multiply
    144.73x = 216.57 × 125.53
  4. Step 4: Simplify right side
    144.73x = 27,186.03
  5. Step 5: Solve for x
    x = 27,186.03/144.73
  6. Step 6: Final answer
    x = 187.85

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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.