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Finding the Fourth Proportional to 148.63, 223.96 and 122.17

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Solution

The fourth proportional to 148.63, 223.96 and 122.17 is: 184.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    148.63 : 223.96 = 122.17 : x
  2. Step 2: Convert to fraction form
    148.63/223.96 = 122.17/x
  3. Step 3: Cross multiply
    148.63x = 223.96 × 122.17
  4. Step 4: Simplify right side
    148.63x = 27,361.63
  5. Step 5: Solve for x
    x = 27,361.63/148.63
  6. Step 6: Final answer
    x = 184.09

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.