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Finding the Fourth Proportional to 216,028.80, 324,043.20 and 127,455.30

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Solution

The fourth proportional to 216,028.80, 324,043.20 and 127,455.30 is: 191,182.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,028.80 : 324,043.20 = 127,455.30 : x
  2. Step 2: Convert to fraction form
    216,028.80/324,043.20 = 127,455.30/x
  3. Step 3: Cross multiply
    216,028.80x = 324,043.20 × 127,455.30
  4. Step 4: Simplify right side
    216,028.80x = 41,301,023,268.96
  5. Step 5: Solve for x
    x = 41,301,023,268.96/216,028.80
  6. Step 6: Final answer
    x = 191,182.95

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