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Finding the Fourth Proportional to 308,563.32, 425,675.34 and 213,203.64

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Solution

The fourth proportional to 308,563.32, 425,675.34 and 213,203.64 is: 294,122.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,563.32 : 425,675.34 = 213,203.64 : x
  2. Step 2: Convert to fraction form
    308,563.32/425,675.34 = 213,203.64/x
  3. Step 3: Cross multiply
    308,563.32x = 425,675.34 × 213,203.64
  4. Step 4: Simplify right side
    308,563.32x = 90,755,531,946.24
  5. Step 5: Solve for x
    x = 90,755,531,946.24/308,563.32
  6. Step 6: Final answer
    x = 294,122.88

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