Home / 279,846.20-419,769.30-92,857.70

Finding the Fourth Proportional to 279,846.20, 419,769.30 and 92,857.70

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Solution

The fourth proportional to 279,846.20, 419,769.30 and 92,857.70 is: 139,286.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,846.20 : 419,769.30 = 92,857.70 : x
  2. Step 2: Convert to fraction form
    279,846.20/419,769.30 = 92,857.70/x
  3. Step 3: Cross multiply
    279,846.20x = 419,769.30 × 92,857.70
  4. Step 4: Simplify right side
    279,846.20x = 38,978,811,728.61
  5. Step 5: Solve for x
    x = 38,978,811,728.61/279,846.20
  6. Step 6: Final answer
    x = 139,286.55

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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.