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Finding the Fourth Proportional to 220,883.28, 331,356.16 and 71,088.72

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Solution

The fourth proportional to 220,883.28, 331,356.16 and 71,088.72 is: 106,643.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,883.28 : 331,356.16 = 71,088.72 : x
  2. Step 2: Convert to fraction form
    220,883.28/331,356.16 = 71,088.72/x
  3. Step 3: Cross multiply
    220,883.28x = 331,356.16 × 71,088.72
  4. Step 4: Simplify right side
    220,883.28x = 23,555,685,278.52
  5. Step 5: Solve for x
    x = 23,555,685,278.52/220,883.28
  6. Step 6: Final answer
    x = 106,643.13

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