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Finding the Fourth Proportional to 174.25, 260.21 and 168.68

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Solution

The fourth proportional to 174.25, 260.21 and 168.68 is: 251.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.25 : 260.21 = 168.68 : x
  2. Step 2: Convert to fraction form
    174.25/260.21 = 168.68/x
  3. Step 3: Cross multiply
    174.25x = 260.21 × 168.68
  4. Step 4: Simplify right side
    174.25x = 43,893.30
  5. Step 5: Solve for x
    x = 43,893.30/174.25
  6. Step 6: Final answer
    x = 251.90

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.