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Finding the Fourth Proportional to 379,261.44, 569,185.92 and 142,819.20

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Solution

The fourth proportional to 379,261.44, 569,185.92 and 142,819.20 is: 214,339.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,261.44 : 569,185.92 = 142,819.20 : x
  2. Step 2: Convert to fraction form
    379,261.44/569,185.92 = 142,819.20/x
  3. Step 3: Cross multiply
    379,261.44x = 569,185.92 × 142,819.20
  4. Step 4: Simplify right side
    379,261.44x = 81,290,677,745.66
  5. Step 5: Solve for x
    x = 81,290,677,745.66/379,261.44
  6. Step 6: Final answer
    x = 214,339.42

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