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Finding the Fourth Proportional to 149.85, 223.43 and 134.46

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Solution

The fourth proportional to 149.85, 223.43 and 134.46 is: 200.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    149.85 : 223.43 = 134.46 : x
  2. Step 2: Convert to fraction form
    149.85/223.43 = 134.46/x
  3. Step 3: Cross multiply
    149.85x = 223.43 × 134.46
  4. Step 4: Simplify right side
    149.85x = 30,041.73
  5. Step 5: Solve for x
    x = 30,041.73/149.85
  6. Step 6: Final answer
    x = 200.48

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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.