Home / 259,987.44-389,995.02-82,508.34

Finding the Fourth Proportional to 259,987.44, 389,995.02 and 82,508.34

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Solution

The fourth proportional to 259,987.44, 389,995.02 and 82,508.34 is: 123,766.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,987.44 : 389,995.02 = 82,508.34 : x
  2. Step 2: Convert to fraction form
    259,987.44/389,995.02 = 82,508.34/x
  3. Step 3: Cross multiply
    259,987.44x = 389,995.02 × 82,508.34
  4. Step 4: Simplify right side
    259,987.44x = 32,177,841,708.47
  5. Step 5: Solve for x
    x = 32,177,841,708.47/259,987.44
  6. Step 6: Final answer
    x = 123,766.91

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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.