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Finding the Fourth Proportional to 381,107.79, 571,661.73 and 100,627.47

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Solution

The fourth proportional to 381,107.79, 571,661.73 and 100,627.47 is: 150,941.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,107.79 : 571,661.73 = 100,627.47 : x
  2. Step 2: Convert to fraction form
    381,107.79/571,661.73 = 100,627.47/x
  3. Step 3: Cross multiply
    381,107.79x = 571,661.73 × 100,627.47
  4. Step 4: Simplify right side
    381,107.79x = 57,524,873,585.72
  5. Step 5: Solve for x
    x = 57,524,873,585.72/381,107.79
  6. Step 6: Final answer
    x = 150,941.22

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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.