Home / 279,339.20-419,010.93-79,659.42

Finding the Fourth Proportional to 279,339.20, 419,010.93 and 79,659.42

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Solution

The fourth proportional to 279,339.20, 419,010.93 and 79,659.42 is: 119,489.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,339.20 : 419,010.93 = 79,659.42 : x
  2. Step 2: Convert to fraction form
    279,339.20/419,010.93 = 79,659.42/x
  3. Step 3: Cross multiply
    279,339.20x = 419,010.93 × 79,659.42
  4. Step 4: Simplify right side
    279,339.20x = 33,378,167,657.46
  5. Step 5: Solve for x
    x = 33,378,167,657.46/279,339.20
  6. Step 6: Final answer
    x = 119,489.74

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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.