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Finding the Fourth Proportional to 169.70, 234.05 and 114.37

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Solution

The fourth proportional to 169.70, 234.05 and 114.37 is: 157.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.70 : 234.05 = 114.37 : x
  2. Step 2: Convert to fraction form
    169.70/234.05 = 114.37/x
  3. Step 3: Cross multiply
    169.70x = 234.05 × 114.37
  4. Step 4: Simplify right side
    169.70x = 26,767.14
  5. Step 5: Solve for x
    x = 26,767.14/169.70
  6. Step 6: Final answer
    x = 157.73

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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.