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Finding the Fourth Proportional to 174.96, 262.17 and 129.33

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Solution

The fourth proportional to 174.96, 262.17 and 129.33 is: 193.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.96 : 262.17 = 129.33 : x
  2. Step 2: Convert to fraction form
    174.96/262.17 = 129.33/x
  3. Step 3: Cross multiply
    174.96x = 262.17 × 129.33
  4. Step 4: Simplify right side
    174.96x = 33,906.45
  5. Step 5: Solve for x
    x = 33,906.45/174.96
  6. Step 6: Final answer
    x = 193.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.