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Finding the Fourth Proportional to 149.43, 223.87 and 130.94

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Solution

The fourth proportional to 149.43, 223.87 and 130.94 is: 196.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    149.43 : 223.87 = 130.94 : x
  2. Step 2: Convert to fraction form
    149.43/223.87 = 130.94/x
  3. Step 3: Cross multiply
    149.43x = 223.87 × 130.94
  4. Step 4: Simplify right side
    149.43x = 29,313.54
  5. Step 5: Solve for x
    x = 29,313.54/149.43
  6. Step 6: Final answer
    x = 196.17

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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.