Home / 320,443.92-442,215.44-177,213.60

Finding the Fourth Proportional to 320,443.92, 442,215.44 and 177,213.60

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Solution

The fourth proportional to 320,443.92, 442,215.44 and 177,213.60 is: 244,556.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,443.92 : 442,215.44 = 177,213.60 : x
  2. Step 2: Convert to fraction form
    320,443.92/442,215.44 = 177,213.60/x
  3. Step 3: Cross multiply
    320,443.92x = 442,215.44 × 177,213.60
  4. Step 4: Simplify right side
    320,443.92x = 78,366,590,097.98
  5. Step 5: Solve for x
    x = 78,366,590,097.98/320,443.92
  6. Step 6: Final answer
    x = 244,556.33

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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.