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Finding the Fourth Proportional to 299,839.48, 449,761.16 and 119,939.94

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Solution

The fourth proportional to 299,839.48, 449,761.16 and 119,939.94 is: 179,910.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,839.48 : 449,761.16 = 119,939.94 : x
  2. Step 2: Convert to fraction form
    299,839.48/449,761.16 = 119,939.94/x
  3. Step 3: Cross multiply
    299,839.48x = 449,761.16 × 119,939.94
  4. Step 4: Simplify right side
    299,839.48x = 53,944,326,544.73
  5. Step 5: Solve for x
    x = 53,944,326,544.73/299,839.48
  6. Step 6: Final answer
    x = 179,910.69

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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.