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Finding the Fourth Proportional to 247.35, 371.26 and 119.19

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Solution

The fourth proportional to 247.35, 371.26 and 119.19 is: 178.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.35 : 371.26 = 119.19 : x
  2. Step 2: Convert to fraction form
    247.35/371.26 = 119.19/x
  3. Step 3: Cross multiply
    247.35x = 371.26 × 119.19
  4. Step 4: Simplify right side
    247.35x = 44,248.33
  5. Step 5: Solve for x
    x = 44,248.33/247.35
  6. Step 6: Final answer
    x = 178.89

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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.