Home / 263,976.97-395,944.78-74,429.68

Finding the Fourth Proportional to 263,976.97, 395,944.78 and 74,429.68

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Solution

The fourth proportional to 263,976.97, 395,944.78 and 74,429.68 is: 111,638.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,976.97 : 395,944.78 = 74,429.68 : x
  2. Step 2: Convert to fraction form
    263,976.97/395,944.78 = 74,429.68/x
  3. Step 3: Cross multiply
    263,976.97x = 395,944.78 × 74,429.68
  4. Step 4: Simplify right side
    263,976.97x = 29,470,043,273.07
  5. Step 5: Solve for x
    x = 29,470,043,273.07/263,976.97
  6. Step 6: Final answer
    x = 111,638.69

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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.