Home / 221,680.20-332,520.30-192,811.80

Finding the Fourth Proportional to 221,680.20, 332,520.30 and 192,811.80

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Solution

The fourth proportional to 221,680.20, 332,520.30 and 192,811.80 is: 289,217.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,680.20 : 332,520.30 = 192,811.80 : x
  2. Step 2: Convert to fraction form
    221,680.20/332,520.30 = 192,811.80/x
  3. Step 3: Cross multiply
    221,680.20x = 332,520.30 × 192,811.80
  4. Step 4: Simplify right side
    221,680.20x = 64,113,837,579.54
  5. Step 5: Solve for x
    x = 64,113,837,579.54/221,680.20
  6. Step 6: Final answer
    x = 289,217.70

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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.