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Finding the Fourth Proportional to 381,391.76, 571,379.81 and 273,097.59

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Solution

The fourth proportional to 381,391.76, 571,379.81 and 273,097.59 is: 409,139.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,391.76 : 571,379.81 = 273,097.59 : x
  2. Step 2: Convert to fraction form
    381,391.76/571,379.81 = 273,097.59/x
  3. Step 3: Cross multiply
    381,391.76x = 571,379.81 × 273,097.59
  4. Step 4: Simplify right side
    381,391.76x = 156,042,447,720.17
  5. Step 5: Solve for x
    x = 156,042,447,720.17/381,391.76
  6. Step 6: Final answer
    x = 409,139.54

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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.