Home / 320,640.54-442,496.97-177,398.25

Finding the Fourth Proportional to 320,640.54, 442,496.97 and 177,398.25

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Solution

The fourth proportional to 320,640.54, 442,496.97 and 177,398.25 is: 244,816.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,640.54 : 442,496.97 = 177,398.25 : x
  2. Step 2: Convert to fraction form
    320,640.54/442,496.97 = 177,398.25/x
  3. Step 3: Cross multiply
    320,640.54x = 442,496.97 × 177,398.25
  4. Step 4: Simplify right side
    320,640.54x = 78,498,188,108.30
  5. Step 5: Solve for x
    x = 78,498,188,108.30/320,640.54
  6. Step 6: Final answer
    x = 244,816.79

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1.5x scale

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.