Home / 279,584.20-419,376.30-69,222.14

Finding the Fourth Proportional to 279,584.20, 419,376.30 and 69,222.14

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Solution

The fourth proportional to 279,584.20, 419,376.30 and 69,222.14 is: 103,833.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,584.20 : 419,376.30 = 69,222.14 : x
  2. Step 2: Convert to fraction form
    279,584.20/419,376.30 = 69,222.14/x
  3. Step 3: Cross multiply
    279,584.20x = 419,376.30 × 69,222.14
  4. Step 4: Simplify right side
    279,584.20x = 29,030,124,951.28
  5. Step 5: Solve for x
    x = 29,030,124,951.28/279,584.20
  6. Step 6: Final answer
    x = 103,833.21

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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.