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Finding the Fourth Proportional to 169.77, 234.18 and 119.97

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Solution

The fourth proportional to 169.77, 234.18 and 119.97 is: 165.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.77 : 234.18 = 119.97 : x
  2. Step 2: Convert to fraction form
    169.77/234.18 = 119.97/x
  3. Step 3: Cross multiply
    169.77x = 234.18 × 119.97
  4. Step 4: Simplify right side
    169.77x = 28,094.57
  5. Step 5: Solve for x
    x = 28,094.57/169.77
  6. Step 6: Final answer
    x = 165.49

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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.