Home / 279,949.26-419,837.76-80,216.13

Finding the Fourth Proportional to 279,949.26, 419,837.76 and 80,216.13

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Solution

The fourth proportional to 279,949.26, 419,837.76 and 80,216.13 is: 120,299.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,949.26 : 419,837.76 = 80,216.13 : x
  2. Step 2: Convert to fraction form
    279,949.26/419,837.76 = 80,216.13/x
  3. Step 3: Cross multiply
    279,949.26x = 419,837.76 × 80,216.13
  4. Step 4: Simplify right side
    279,949.26x = 33,677,760,335.07
  5. Step 5: Solve for x
    x = 33,677,760,335.07/279,949.26
  6. Step 6: Final answer
    x = 120,299.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.