Home / 320,388.96-442,129.92-177,155.04

Finding the Fourth Proportional to 320,388.96, 442,129.92 and 177,155.04

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Solution

The fourth proportional to 320,388.96, 442,129.92 and 177,155.04 is: 244,470.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,388.96 : 442,129.92 = 177,155.04 : x
  2. Step 2: Convert to fraction form
    320,388.96/442,129.92 = 177,155.04/x
  3. Step 3: Cross multiply
    320,388.96x = 442,129.92 × 177,155.04
  4. Step 4: Simplify right side
    320,388.96x = 78,325,543,662.80
  5. Step 5: Solve for x
    x = 78,325,543,662.80/320,388.96
  6. Step 6: Final answer
    x = 244,470.17

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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.