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Finding the Fourth Proportional to 340,822.80, 511,234.20 and 214,851.60

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Solution

The fourth proportional to 340,822.80, 511,234.20 and 214,851.60 is: 322,277.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,822.80 : 511,234.20 = 214,851.60 : x
  2. Step 2: Convert to fraction form
    340,822.80/511,234.20 = 214,851.60/x
  3. Step 3: Cross multiply
    340,822.80x = 511,234.20 × 214,851.60
  4. Step 4: Simplify right side
    340,822.80x = 109,839,485,844.72
  5. Step 5: Solve for x
    x = 109,839,485,844.72/340,822.80
  6. Step 6: Final answer
    x = 322,277.40

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