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Finding the Fourth Proportional to 149.22, 223.65 and 97.95

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Solution

The fourth proportional to 149.22, 223.65 and 97.95 is: 146.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    149.22 : 223.65 = 97.95 : x
  2. Step 2: Convert to fraction form
    149.22/223.65 = 97.95/x
  3. Step 3: Cross multiply
    149.22x = 223.65 × 97.95
  4. Step 4: Simplify right side
    149.22x = 21,906.52
  5. Step 5: Solve for x
    x = 21,906.52/149.22
  6. Step 6: Final answer
    x = 146.81

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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.