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Finding the Fourth Proportional to 299.52, 449.19 and 177.75

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Solution

The fourth proportional to 299.52, 449.19 and 177.75 is: 266.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    299.52 : 449.19 = 177.75 : x
  2. Step 2: Convert to fraction form
    299.52/449.19 = 177.75/x
  3. Step 3: Cross multiply
    299.52x = 449.19 × 177.75
  4. Step 4: Simplify right side
    299.52x = 79,843.52
  5. Step 5: Solve for x
    x = 79,843.52/299.52
  6. Step 6: Final answer
    x = 266.57

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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.