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Finding the Fourth Proportional to 268,309.76, 402,522.72 and 81,335.36

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Solution

The fourth proportional to 268,309.76, 402,522.72 and 81,335.36 is: 122,020.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,309.76 : 402,522.72 = 81,335.36 : x
  2. Step 2: Convert to fraction form
    268,309.76/402,522.72 = 81,335.36/x
  3. Step 3: Cross multiply
    268,309.76x = 402,522.72 × 81,335.36
  4. Step 4: Simplify right side
    268,309.76x = 32,739,330,339.38
  5. Step 5: Solve for x
    x = 32,739,330,339.38/268,309.76
  6. Step 6: Final answer
    x = 122,020.65

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