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Finding the Fourth Proportional to 169.96, 234.36 and 133.06

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Solution

The fourth proportional to 169.96, 234.36 and 133.06 is: 183.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.96 : 234.36 = 133.06 : x
  2. Step 2: Convert to fraction form
    169.96/234.36 = 133.06/x
  3. Step 3: Cross multiply
    169.96x = 234.36 × 133.06
  4. Step 4: Simplify right side
    169.96x = 31,183.94
  5. Step 5: Solve for x
    x = 31,183.94/169.96
  6. Step 6: Final answer
    x = 183.48

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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.