Home / 381,983.20-572,556.30-192,140.80

Finding the Fourth Proportional to 381,983.20, 572,556.30 and 192,140.80

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Solution

The fourth proportional to 381,983.20, 572,556.30 and 192,140.80 is: 288,000.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,983.20 : 572,556.30 = 192,140.80 : x
  2. Step 2: Convert to fraction form
    381,983.20/572,556.30 = 192,140.80/x
  3. Step 3: Cross multiply
    381,983.20x = 572,556.30 × 192,140.80
  4. Step 4: Simplify right side
    381,983.20x = 110,011,425,527.04
  5. Step 5: Solve for x
    x = 110,011,425,527.04/381,983.20
  6. Step 6: Final answer
    x = 288,000.69

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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.