Home / 279,942.26-419,827.26-80,209.13

Finding the Fourth Proportional to 279,942.26, 419,827.26 and 80,209.13

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Solution

The fourth proportional to 279,942.26, 419,827.26 and 80,209.13 is: 120,289.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,942.26 : 419,827.26 = 80,209.13 : x
  2. Step 2: Convert to fraction form
    279,942.26/419,827.26 = 80,209.13/x
  3. Step 3: Cross multiply
    279,942.26x = 419,827.26 × 80,209.13
  4. Step 4: Simplify right side
    279,942.26x = 33,673,979,274.88
  5. Step 5: Solve for x
    x = 33,673,979,274.88/279,942.26
  6. Step 6: Final answer
    x = 120,289.02

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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.