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Finding the Fourth Proportional to 219,120.40, 327,989.40 and 156,912.40

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Solution

The fourth proportional to 219,120.40, 327,989.40 and 156,912.40 is: 234,873.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,120.40 : 327,989.40 = 156,912.40 : x
  2. Step 2: Convert to fraction form
    219,120.40/327,989.40 = 156,912.40/x
  3. Step 3: Cross multiply
    219,120.40x = 327,989.40 × 156,912.40
  4. Step 4: Simplify right side
    219,120.40x = 51,465,603,928.56
  5. Step 5: Solve for x
    x = 51,465,603,928.56/219,120.40
  6. Step 6: Final answer
    x = 234,873.63

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