Home / 259,731.12-389,720.09-179,891.97

Finding the Fourth Proportional to 259,731.12, 389,720.09 and 179,891.97

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Solution

The fourth proportional to 259,731.12, 389,720.09 and 179,891.97 is: 269,923.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,731.12 : 389,720.09 = 179,891.97 : x
  2. Step 2: Convert to fraction form
    259,731.12/389,720.09 = 179,891.97/x
  3. Step 3: Cross multiply
    259,731.12x = 389,720.09 × 179,891.97
  4. Step 4: Simplify right side
    259,731.12x = 70,107,514,738.68
  5. Step 5: Solve for x
    x = 70,107,514,738.68/259,731.12
  6. Step 6: Final answer
    x = 269,923.43

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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.