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Finding the Fourth Proportional to 247.26, 370.85 and 149.79

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Solution

The fourth proportional to 247.26, 370.85 and 149.79 is: 224.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.26 : 370.85 = 149.79 : x
  2. Step 2: Convert to fraction form
    247.26/370.85 = 149.79/x
  3. Step 3: Cross multiply
    247.26x = 370.85 × 149.79
  4. Step 4: Simplify right side
    247.26x = 55,550.26
  5. Step 5: Solve for x
    x = 55,550.26/247.26
  6. Step 6: Final answer
    x = 224.66

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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.