Home / 320,976.46-442,947.47-177,736.50

Finding the Fourth Proportional to 320,976.46, 442,947.47 and 177,736.50

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Solution

The fourth proportional to 320,976.46, 442,947.47 and 177,736.50 is: 245,276.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,976.46 : 442,947.47 = 177,736.50 : x
  2. Step 2: Convert to fraction form
    320,976.46/442,947.47 = 177,736.50/x
  3. Step 3: Cross multiply
    320,976.46x = 442,947.47 × 177,736.50
  4. Step 4: Simplify right side
    320,976.46x = 78,727,933,446.00
  5. Step 5: Solve for x
    x = 78,727,933,446.00/320,976.46
  6. Step 6: Final answer
    x = 245,276.35

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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.