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Finding the Fourth Proportional to 201.57, 301.06 and 168.85

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Solution

The fourth proportional to 201.57, 301.06 and 168.85 is: 252.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    201.57 : 301.06 = 168.85 : x
  2. Step 2: Convert to fraction form
    201.57/301.06 = 168.85/x
  3. Step 3: Cross multiply
    201.57x = 301.06 × 168.85
  4. Step 4: Simplify right side
    201.57x = 50,833.98
  5. Step 5: Solve for x
    x = 50,833.98/201.57
  6. Step 6: Final answer
    x = 252.19

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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.