Home / 279,954.27-419,807.87-80,229.33

Finding the Fourth Proportional to 279,954.27, 419,807.87 and 80,229.33

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Solution

The fourth proportional to 279,954.27, 419,807.87 and 80,229.33 is: 120,308.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,954.27 : 419,807.87 = 80,229.33 : x
  2. Step 2: Convert to fraction form
    279,954.27/419,807.87 = 80,229.33/x
  3. Step 3: Cross multiply
    279,954.27x = 419,807.87 × 80,229.33
  4. Step 4: Simplify right side
    279,954.27x = 33,680,905,388.92
  5. Step 5: Solve for x
    x = 33,680,905,388.92/279,954.27
  6. Step 6: Final answer
    x = 120,308.60

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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.