Home / 320,990.50-442,961.44-177,747.46

Finding the Fourth Proportional to 320,990.50, 442,961.44 and 177,747.46

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Solution

The fourth proportional to 320,990.50, 442,961.44 and 177,747.46 is: 245,288.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,990.50 : 442,961.44 = 177,747.46 : x
  2. Step 2: Convert to fraction form
    320,990.50/442,961.44 = 177,747.46/x
  3. Step 3: Cross multiply
    320,990.50x = 442,961.44 × 177,747.46
  4. Step 4: Simplify right side
    320,990.50x = 78,735,270,837.94
  5. Step 5: Solve for x
    x = 78,735,270,837.94/320,990.50
  6. Step 6: Final answer
    x = 245,288.48

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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.