Home / 220,195.24-330,380.38-70,458.60

Finding the Fourth Proportional to 220,195.24, 330,380.38 and 70,458.60

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Solution

The fourth proportional to 220,195.24, 330,380.38 and 70,458.60 is: 105,715.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,195.24 : 330,380.38 = 70,458.60 : x
  2. Step 2: Convert to fraction form
    220,195.24/330,380.38 = 70,458.60/x
  3. Step 3: Cross multiply
    220,195.24x = 330,380.38 × 70,458.60
  4. Step 4: Simplify right side
    220,195.24x = 23,278,139,042.27
  5. Step 5: Solve for x
    x = 23,278,139,042.27/220,195.24
  6. Step 6: Final answer
    x = 105,715.90

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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.