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Finding the Fourth Proportional to 175.81, 242.49 and 169.87

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Solution

The fourth proportional to 175.81, 242.49 and 169.87 is: 234.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.81 : 242.49 = 169.87 : x
  2. Step 2: Convert to fraction form
    175.81/242.49 = 169.87/x
  3. Step 3: Cross multiply
    175.81x = 242.49 × 169.87
  4. Step 4: Simplify right side
    175.81x = 41,190.56
  5. Step 5: Solve for x
    x = 41,190.56/175.81
  6. Step 6: Final answer
    x = 234.30

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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.