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Finding the Fourth Proportional to 250.30, 343.94 and 203.56

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Solution

The fourth proportional to 250.30, 343.94 and 203.56 is: 279.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.30 : 343.94 = 203.56 : x
  2. Step 2: Convert to fraction form
    250.30/343.94 = 203.56/x
  3. Step 3: Cross multiply
    250.30x = 343.94 × 203.56
  4. Step 4: Simplify right side
    250.30x = 70,010.55
  5. Step 5: Solve for x
    x = 70,010.55/250.30
  6. Step 6: Final answer
    x = 279.71

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.