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Finding the Fourth Proportional to 381,385.43, 572,170.62 and 115,130.03

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Solution

The fourth proportional to 381,385.43, 572,170.62 and 115,130.03 is: 172,722.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,385.43 : 572,170.62 = 115,130.03 : x
  2. Step 2: Convert to fraction form
    381,385.43/572,170.62 = 115,130.03/x
  3. Step 3: Cross multiply
    381,385.43x = 572,170.62 × 115,130.03
  4. Step 4: Simplify right side
    381,385.43x = 65,874,020,645.72
  5. Step 5: Solve for x
    x = 65,874,020,645.72/381,385.43
  6. Step 6: Final answer
    x = 172,722.96

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