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Finding the Fourth Proportional to 249.24, 372.41 and 200.64

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Solution

The fourth proportional to 249.24, 372.41 and 200.64 is: 299.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.24 : 372.41 = 200.64 : x
  2. Step 2: Convert to fraction form
    249.24/372.41 = 200.64/x
  3. Step 3: Cross multiply
    249.24x = 372.41 × 200.64
  4. Step 4: Simplify right side
    249.24x = 74,720.84
  5. Step 5: Solve for x
    x = 74,720.84/249.24
  6. Step 6: Final answer
    x = 299.79

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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.