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Finding the Fourth Proportional to 149.33, 223.12 and 130.80

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Solution

The fourth proportional to 149.33, 223.12 and 130.80 is: 195.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    149.33 : 223.12 = 130.80 : x
  2. Step 2: Convert to fraction form
    149.33/223.12 = 130.80/x
  3. Step 3: Cross multiply
    149.33x = 223.12 × 130.80
  4. Step 4: Simplify right side
    149.33x = 29,183.77
  5. Step 5: Solve for x
    x = 29,183.77/149.33
  6. Step 6: Final answer
    x = 195.44

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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.