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Finding the Fourth Proportional to 219.02, 326.99 and 167.39

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Solution

The fourth proportional to 219.02, 326.99 and 167.39 is: 249.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    219.02 : 326.99 = 167.39 : x
  2. Step 2: Convert to fraction form
    219.02/326.99 = 167.39/x
  3. Step 3: Cross multiply
    219.02x = 326.99 × 167.39
  4. Step 4: Simplify right side
    219.02x = 54,734.44
  5. Step 5: Solve for x
    x = 54,734.44/219.02
  6. Step 6: Final answer
    x = 249.91

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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.