Home / 307,986.38-461,974.11-158,138.61

Finding the Fourth Proportional to 307,986.38, 461,974.11 and 158,138.61

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Solution

The fourth proportional to 307,986.38, 461,974.11 and 158,138.61 is: 237,205.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,986.38 : 461,974.11 = 158,138.61 : x
  2. Step 2: Convert to fraction form
    307,986.38/461,974.11 = 158,138.61/x
  3. Step 3: Cross multiply
    307,986.38x = 461,974.11 × 158,138.61
  4. Step 4: Simplify right side
    307,986.38x = 73,055,944,329.33
  5. Step 5: Solve for x
    x = 73,055,944,329.33/307,986.38
  6. Step 6: Final answer
    x = 237,205.11

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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.