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Finding the Fourth Proportional to 161.11, 240.28 and 150.18

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Solution

The fourth proportional to 161.11, 240.28 and 150.18 is: 223.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    161.11 : 240.28 = 150.18 : x
  2. Step 2: Convert to fraction form
    161.11/240.28 = 150.18/x
  3. Step 3: Cross multiply
    161.11x = 240.28 × 150.18
  4. Step 4: Simplify right side
    161.11x = 36,083.97
  5. Step 5: Solve for x
    x = 36,083.97/161.11
  6. Step 6: Final answer
    x = 223.97

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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.