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Finding the Fourth Proportional to 216,828.80, 325,243.20 and 164,340.80

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Solution

The fourth proportional to 216,828.80, 325,243.20 and 164,340.80 is: 246,511.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,828.80 : 325,243.20 = 164,340.80 : x
  2. Step 2: Convert to fraction form
    216,828.80/325,243.20 = 164,340.80/x
  3. Step 3: Cross multiply
    216,828.80x = 325,243.20 × 164,340.80
  4. Step 4: Simplify right side
    216,828.80x = 53,450,727,682.56
  5. Step 5: Solve for x
    x = 53,450,727,682.56/216,828.80
  6. Step 6: Final answer
    x = 246,511.20

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