Home / 259,761.30-389,639.25-82,268.29

Finding the Fourth Proportional to 259,761.30, 389,639.25 and 82,268.29

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Solution

The fourth proportional to 259,761.30, 389,639.25 and 82,268.29 is: 123,401.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,761.30 : 389,639.25 = 82,268.29 : x
  2. Step 2: Convert to fraction form
    259,761.30/389,639.25 = 82,268.29/x
  3. Step 3: Cross multiply
    259,761.30x = 389,639.25 × 82,268.29
  4. Step 4: Simplify right side
    259,761.30x = 32,054,955,609.94
  5. Step 5: Solve for x
    x = 32,054,955,609.94/259,761.30
  6. Step 6: Final answer
    x = 123,401.58

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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.