Home / 258,138.24-386,974.08-179,289.60

Finding the Fourth Proportional to 258,138.24, 386,974.08 and 179,289.60

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Solution

The fourth proportional to 258,138.24, 386,974.08 and 179,289.60 is: 268,772.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,138.24 : 386,974.08 = 179,289.60 : x
  2. Step 2: Convert to fraction form
    258,138.24/386,974.08 = 179,289.60/x
  3. Step 3: Cross multiply
    258,138.24x = 386,974.08 × 179,289.60
  4. Step 4: Simplify right side
    258,138.24x = 69,380,428,013.57
  5. Step 5: Solve for x
    x = 69,380,428,013.57/258,138.24
  6. Step 6: Final answer
    x = 268,772.38

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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.