Home / 220,540.50-330,791.04-70,740.09

Finding the Fourth Proportional to 220,540.50, 330,791.04 and 70,740.09

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Solution

The fourth proportional to 220,540.50, 330,791.04 and 70,740.09 is: 106,103.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,540.50 : 330,791.04 = 70,740.09 : x
  2. Step 2: Convert to fraction form
    220,540.50/330,791.04 = 70,740.09/x
  3. Step 3: Cross multiply
    220,540.50x = 330,791.04 × 70,740.09
  4. Step 4: Simplify right side
    220,540.50x = 23,400,187,940.79
  5. Step 5: Solve for x
    x = 23,400,187,940.79/220,540.50
  6. Step 6: Final answer
    x = 106,103.81

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1.5x scale

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.