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Finding the Fourth Proportional to 163.38, 244.42 and 134.22

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Solution

The fourth proportional to 163.38, 244.42 and 134.22 is: 200.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.38 : 244.42 = 134.22 : x
  2. Step 2: Convert to fraction form
    163.38/244.42 = 134.22/x
  3. Step 3: Cross multiply
    163.38x = 244.42 × 134.22
  4. Step 4: Simplify right side
    163.38x = 32,806.05
  5. Step 5: Solve for x
    x = 32,806.05/163.38
  6. Step 6: Final answer
    x = 200.80

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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.