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Finding the Fourth Proportional to 308,203.20, 462,304.80 and 213,134.31

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Solution

The fourth proportional to 308,203.20, 462,304.80 and 213,134.31 is: 319,701.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,203.20 : 462,304.80 = 213,134.31 : x
  2. Step 2: Convert to fraction form
    308,203.20/462,304.80 = 213,134.31/x
  3. Step 3: Cross multiply
    308,203.20x = 462,304.80 × 213,134.31
  4. Step 4: Simplify right side
    308,203.20x = 98,533,014,557.69
  5. Step 5: Solve for x
    x = 98,533,014,557.69/308,203.20
  6. Step 6: Final answer
    x = 319,701.47

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