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Finding the Fourth Proportional to 174.16, 260.92 and 133.64

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Solution

The fourth proportional to 174.16, 260.92 and 133.64 is: 200.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.16 : 260.92 = 133.64 : x
  2. Step 2: Convert to fraction form
    174.16/260.92 = 133.64/x
  3. Step 3: Cross multiply
    174.16x = 260.92 × 133.64
  4. Step 4: Simplify right side
    174.16x = 34,869.35
  5. Step 5: Solve for x
    x = 34,869.35/174.16
  6. Step 6: Final answer
    x = 200.21

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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.