Home / 320,974.92-442,944.60-185,007.78

Finding the Fourth Proportional to 320,974.92, 442,944.60 and 185,007.78

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Solution

The fourth proportional to 320,974.92, 442,944.60 and 185,007.78 is: 255,310.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,974.92 : 442,944.60 = 185,007.78 : x
  2. Step 2: Convert to fraction form
    320,974.92/442,944.60 = 185,007.78/x
  3. Step 3: Cross multiply
    320,974.92x = 442,944.60 × 185,007.78
  4. Step 4: Simplify right side
    320,974.92x = 81,948,197,108.99
  5. Step 5: Solve for x
    x = 81,948,197,108.99/320,974.92
  6. Step 6: Final answer
    x = 255,310.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.