Home / 381,919.60-572,879.40-192,306.70

Finding the Fourth Proportional to 381,919.60, 572,879.40 and 192,306.70

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Solution

The fourth proportional to 381,919.60, 572,879.40 and 192,306.70 is: 288,460.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,919.60 : 572,879.40 = 192,306.70 : x
  2. Step 2: Convert to fraction form
    381,919.60/572,879.40 = 192,306.70/x
  3. Step 3: Cross multiply
    381,919.60x = 572,879.40 × 192,306.70
  4. Step 4: Simplify right side
    381,919.60x = 110,168,546,911.98
  5. Step 5: Solve for x
    x = 110,168,546,911.98/381,919.60
  6. Step 6: Final answer
    x = 288,460.05

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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.