Home / 320,976.83-442,947.99-177,736.87

Finding the Fourth Proportional to 320,976.83, 442,947.99 and 177,736.87

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Solution

The fourth proportional to 320,976.83, 442,947.99 and 177,736.87 is: 245,276.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,976.83 : 442,947.99 = 177,736.87 : x
  2. Step 2: Convert to fraction form
    320,976.83/442,947.99 = 177,736.87/x
  3. Step 3: Cross multiply
    320,976.83x = 442,947.99 × 177,736.87
  4. Step 4: Simplify right side
    320,976.83x = 78,728,190,535.59
  5. Step 5: Solve for x
    x = 78,728,190,535.59/320,976.83
  6. Step 6: Final answer
    x = 245,276.86

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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.