Home / 299,609.12-449,422.88-131,042.72

Finding the Fourth Proportional to 299,609.12, 449,422.88 and 131,042.72

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Solution

The fourth proportional to 299,609.12, 449,422.88 and 131,042.72 is: 196,568.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,609.12 : 449,422.88 = 131,042.72 : x
  2. Step 2: Convert to fraction form
    299,609.12/449,422.88 = 131,042.72/x
  3. Step 3: Cross multiply
    299,609.12x = 449,422.88 × 131,042.72
  4. Step 4: Simplify right side
    299,609.12x = 58,893,596,625.43
  5. Step 5: Solve for x
    x = 58,893,596,625.43/299,609.12
  6. Step 6: Final answer
    x = 196,568.10

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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.