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Finding the Fourth Proportional to 169.19, 232.97 and 144.57

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Solution

The fourth proportional to 169.19, 232.97 and 144.57 is: 199.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.19 : 232.97 = 144.57 : x
  2. Step 2: Convert to fraction form
    169.19/232.97 = 144.57/x
  3. Step 3: Cross multiply
    169.19x = 232.97 × 144.57
  4. Step 4: Simplify right side
    169.19x = 33,679.75
  5. Step 5: Solve for x
    x = 33,679.75/169.19
  6. Step 6: Final answer
    x = 199.07

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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.