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Finding the Fourth Proportional to 171.36, 237.43 and 168.74

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Solution

The fourth proportional to 171.36, 237.43 and 168.74 is: 233.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    171.36 : 237.43 = 168.74 : x
  2. Step 2: Convert to fraction form
    171.36/237.43 = 168.74/x
  3. Step 3: Cross multiply
    171.36x = 237.43 × 168.74
  4. Step 4: Simplify right side
    171.36x = 40,063.94
  5. Step 5: Solve for x
    x = 40,063.94/171.36
  6. Step 6: Final answer
    x = 233.80

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.