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Finding the Fourth Proportional to 381,144.96, 571,717.44 and 131,690.88

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Solution

The fourth proportional to 381,144.96, 571,717.44 and 131,690.88 is: 197,536.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,144.96 : 571,717.44 = 131,690.88 : x
  2. Step 2: Convert to fraction form
    381,144.96/571,717.44 = 131,690.88/x
  3. Step 3: Cross multiply
    381,144.96x = 571,717.44 × 131,690.88
  4. Step 4: Simplify right side
    381,144.96x = 75,289,972,784.95
  5. Step 5: Solve for x
    x = 75,289,972,784.95/381,144.96
  6. Step 6: Final answer
    x = 197,536.32

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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.