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Finding the Fourth Proportional to 250.11, 344.90 and 203.43

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Solution

The fourth proportional to 250.11, 344.90 and 203.43 is: 280.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.11 : 344.90 = 203.43 : x
  2. Step 2: Convert to fraction form
    250.11/344.90 = 203.43/x
  3. Step 3: Cross multiply
    250.11x = 344.90 × 203.43
  4. Step 4: Simplify right side
    250.11x = 70,161.99
  5. Step 5: Solve for x
    x = 70,161.99/250.11
  6. Step 6: Final answer
    x = 280.52

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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.