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Finding the Fourth Proportional to 299,860.08, 449,863.94 and 211,286.56

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Solution

The fourth proportional to 299,860.08, 449,863.94 and 211,286.56 is: 316,981.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,860.08 : 449,863.94 = 211,286.56 : x
  2. Step 2: Convert to fraction form
    299,860.08/449,863.94 = 211,286.56/x
  3. Step 3: Cross multiply
    299,860.08x = 449,863.94 × 211,286.56
  4. Step 4: Simplify right side
    299,860.08x = 95,050,204,350.65
  5. Step 5: Solve for x
    x = 95,050,204,350.65/299,860.08
  6. Step 6: Final answer
    x = 316,981.85

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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.