Home / 381,825.60-572,738.40-192,868.80

Finding the Fourth Proportional to 381,825.60, 572,738.40 and 192,868.80

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Solution

The fourth proportional to 381,825.60, 572,738.40 and 192,868.80 is: 289,303.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,825.60 : 572,738.40 = 192,868.80 : x
  2. Step 2: Convert to fraction form
    381,825.60/572,738.40 = 192,868.80/x
  3. Step 3: Cross multiply
    381,825.60x = 572,738.40 × 192,868.80
  4. Step 4: Simplify right side
    381,825.60x = 110,463,367,921.92
  5. Step 5: Solve for x
    x = 110,463,367,921.92/381,825.60
  6. Step 6: Final answer
    x = 289,303.20

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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.