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Finding the Fourth Proportional to 299,729.25, 449,583.51 and 75,091.65

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Solution

The fourth proportional to 299,729.25, 449,583.51 and 75,091.65 is: 112,634.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,729.25 : 449,583.51 = 75,091.65 : x
  2. Step 2: Convert to fraction form
    299,729.25/449,583.51 = 75,091.65/x
  3. Step 3: Cross multiply
    299,729.25x = 449,583.51 × 75,091.65
  4. Step 4: Simplify right side
    299,729.25x = 33,759,967,578.69
  5. Step 5: Solve for x
    x = 33,759,967,578.69/299,729.25
  6. Step 6: Final answer
    x = 112,634.88

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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.