Home / 259,974.26-389,960.36-82,495.11

Finding the Fourth Proportional to 259,974.26, 389,960.36 and 82,495.11

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Solution

The fourth proportional to 259,974.26, 389,960.36 and 82,495.11 is: 123,742.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,974.26 : 389,960.36 = 82,495.11 : x
  2. Step 2: Convert to fraction form
    259,974.26/389,960.36 = 82,495.11/x
  3. Step 3: Cross multiply
    259,974.26x = 389,960.36 × 82,495.11
  4. Step 4: Simplify right side
    259,974.26x = 32,169,822,793.84
  5. Step 5: Solve for x
    x = 32,169,822,793.84/259,974.26
  6. Step 6: Final answer
    x = 123,742.34

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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.