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Finding the Fourth Proportional to 381,563.64, 526,451.13 and 238,469.04

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Solution

The fourth proportional to 381,563.64, 526,451.13 and 238,469.04 is: 329,020.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,563.64 : 526,451.13 = 238,469.04 : x
  2. Step 2: Convert to fraction form
    381,563.64/526,451.13 = 238,469.04/x
  3. Step 3: Cross multiply
    381,563.64x = 526,451.13 × 238,469.04
  4. Step 4: Simplify right side
    381,563.64x = 125,542,295,578.02
  5. Step 5: Solve for x
    x = 125,542,295,578.02/381,563.64
  6. Step 6: Final answer
    x = 329,020.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.