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Finding the Fourth Proportional to 149.47, 223.94 and 97.93

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Solution

The fourth proportional to 149.47, 223.94 and 97.93 is: 146.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    149.47 : 223.94 = 97.93 : x
  2. Step 2: Convert to fraction form
    149.47/223.94 = 97.93/x
  3. Step 3: Cross multiply
    149.47x = 223.94 × 97.93
  4. Step 4: Simplify right side
    149.47x = 21,930.13
  5. Step 5: Solve for x
    x = 21,930.13/149.47
  6. Step 6: Final answer
    x = 146.72

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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.