Home / 259,942.20-389,257.20-170,712.60

Finding the Fourth Proportional to 259,942.20, 389,257.20 and 170,712.60

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Solution

The fourth proportional to 259,942.20, 389,257.20 and 170,712.60 is: 255,638.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,942.20 : 389,257.20 = 170,712.60 : x
  2. Step 2: Convert to fraction form
    259,942.20/389,257.20 = 170,712.60/x
  3. Step 3: Cross multiply
    259,942.20x = 389,257.20 × 170,712.60
  4. Step 4: Simplify right side
    259,942.20x = 66,451,108,680.72
  5. Step 5: Solve for x
    x = 66,451,108,680.72/259,942.20
  6. Step 6: Final answer
    x = 255,638.02

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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.