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Finding the Fourth Proportional to 299.76, 449.00 and 250.43

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Solution

The fourth proportional to 299.76, 449.00 and 250.43 is: 375.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    299.76 : 449.00 = 250.43 : x
  2. Step 2: Convert to fraction form
    299.76/449.00 = 250.43/x
  3. Step 3: Cross multiply
    299.76x = 449.00 × 250.43
  4. Step 4: Simplify right side
    299.76x = 112,441.82
  5. Step 5: Solve for x
    x = 112,441.82/299.76
  6. Step 6: Final answer
    x = 375.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.