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Finding the Fourth Proportional to 249.30, 343.71 and 200.03

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Solution

The fourth proportional to 249.30, 343.71 and 200.03 is: 275.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.30 : 343.71 = 200.03 : x
  2. Step 2: Convert to fraction form
    249.30/343.71 = 200.03/x
  3. Step 3: Cross multiply
    249.30x = 343.71 × 200.03
  4. Step 4: Simplify right side
    249.30x = 68,750.59
  5. Step 5: Solve for x
    x = 68,750.59/249.30
  6. Step 6: Final answer
    x = 275.77

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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.