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Finding the Fourth Proportional to 163.10, 244.21 and 114.40

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Solution

The fourth proportional to 163.10, 244.21 and 114.40 is: 171.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.10 : 244.21 = 114.40 : x
  2. Step 2: Convert to fraction form
    163.10/244.21 = 114.40/x
  3. Step 3: Cross multiply
    163.10x = 244.21 × 114.40
  4. Step 4: Simplify right side
    163.10x = 27,936.73
  5. Step 5: Solve for x
    x = 27,936.73/163.10
  6. Step 6: Final answer
    x = 171.29

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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.