Home / 299,723.10-449,519.85-131,243.10

Finding the Fourth Proportional to 299,723.10, 449,519.85 and 131,243.10

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Solution

The fourth proportional to 299,723.10, 449,519.85 and 131,243.10 is: 196,836.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,723.10 : 449,519.85 = 131,243.10 : x
  2. Step 2: Convert to fraction form
    299,723.10/449,519.85 = 131,243.10/x
  3. Step 3: Cross multiply
    299,723.10x = 449,519.85 × 131,243.10
  4. Step 4: Simplify right side
    299,723.10x = 58,996,378,625.54
  5. Step 5: Solve for x
    x = 58,996,378,625.54/299,723.10
  6. Step 6: Final answer
    x = 196,836.28

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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.