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Finding the Fourth Proportional to 163.52, 244.18 and 131.12

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Solution

The fourth proportional to 163.52, 244.18 and 131.12 is: 195.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.52 : 244.18 = 131.12 : x
  2. Step 2: Convert to fraction form
    163.52/244.18 = 131.12/x
  3. Step 3: Cross multiply
    163.52x = 244.18 × 131.12
  4. Step 4: Simplify right side
    163.52x = 32,016.88
  5. Step 5: Solve for x
    x = 32,016.88/163.52
  6. Step 6: Final answer
    x = 195.80

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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.