Home / 278,904.75-418,190.76-110,449.23

Finding the Fourth Proportional to 278,904.75, 418,190.76 and 110,449.23

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Solution

The fourth proportional to 278,904.75, 418,190.76 and 110,449.23 is: 165,607.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,904.75 : 418,190.76 = 110,449.23 : x
  2. Step 2: Convert to fraction form
    278,904.75/418,190.76 = 110,449.23/x
  3. Step 3: Cross multiply
    278,904.75x = 418,190.76 × 110,449.23
  4. Step 4: Simplify right side
    278,904.75x = 46,188,847,435.11
  5. Step 5: Solve for x
    x = 46,188,847,435.11/278,904.75
  6. Step 6: Final answer
    x = 165,607.96

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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.