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Finding the Fourth Proportional to 320,793.06, 442,689.06 and 177,550.06

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Solution

The fourth proportional to 320,793.06, 442,689.06 and 177,550.06 is: 245,016.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,793.06 : 442,689.06 = 177,550.06 : x
  2. Step 2: Convert to fraction form
    320,793.06/442,689.06 = 177,550.06/x
  3. Step 3: Cross multiply
    320,793.06x = 442,689.06 × 177,550.06
  4. Step 4: Simplify right side
    320,793.06x = 78,599,469,164.34
  5. Step 5: Solve for x
    x = 78,599,469,164.34/320,793.06
  6. Step 6: Final answer
    x = 245,016.11

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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.