Home / 228,080.20-342,022.44-78,335.56

Finding the Fourth Proportional to 228,080.20, 342,022.44 and 78,335.56

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Solution

The fourth proportional to 228,080.20, 342,022.44 and 78,335.56 is: 117,469.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,080.20 : 342,022.44 = 78,335.56 : x
  2. Step 2: Convert to fraction form
    228,080.20/342,022.44 = 78,335.56/x
  3. Step 3: Cross multiply
    228,080.20x = 342,022.44 × 78,335.56
  4. Step 4: Simplify right side
    228,080.20x = 26,792,519,369.97
  5. Step 5: Solve for x
    x = 26,792,519,369.97/228,080.20
  6. Step 6: Final answer
    x = 117,469.73

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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.