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Finding the Fourth Proportional to 250.80, 344.99 and 217.52

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Solution

The fourth proportional to 250.80, 344.99 and 217.52 is: 299.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.80 : 344.99 = 217.52 : x
  2. Step 2: Convert to fraction form
    250.80/344.99 = 217.52/x
  3. Step 3: Cross multiply
    250.80x = 344.99 × 217.52
  4. Step 4: Simplify right side
    250.80x = 75,042.34
  5. Step 5: Solve for x
    x = 75,042.34/250.80
  6. Step 6: Final answer
    x = 299.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.