Home / 221,860.20-332,790.30-81,600.60

Finding the Fourth Proportional to 221,860.20, 332,790.30 and 81,600.60

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Solution

The fourth proportional to 221,860.20, 332,790.30 and 81,600.60 is: 122,400.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,860.20 : 332,790.30 = 81,600.60 : x
  2. Step 2: Convert to fraction form
    221,860.20/332,790.30 = 81,600.60/x
  3. Step 3: Cross multiply
    221,860.20x = 332,790.30 × 81,600.60
  4. Step 4: Simplify right side
    221,860.20x = 27,155,888,154.18
  5. Step 5: Solve for x
    x = 27,155,888,154.18/221,860.20
  6. Step 6: Final answer
    x = 122,400.90

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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.