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Finding the Fourth Proportional to 163.57, 244.17 and 140.89

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Solution

The fourth proportional to 163.57, 244.17 and 140.89 is: 210.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.57 : 244.17 = 140.89 : x
  2. Step 2: Convert to fraction form
    163.57/244.17 = 140.89/x
  3. Step 3: Cross multiply
    163.57x = 244.17 × 140.89
  4. Step 4: Simplify right side
    163.57x = 34,401.11
  5. Step 5: Solve for x
    x = 34,401.11/163.57
  6. Step 6: Final answer
    x = 210.31

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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.