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Finding the Fourth Proportional to 268,856.25, 403,342.74 and 81,862.89

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Solution

The fourth proportional to 268,856.25, 403,342.74 and 81,862.89 is: 122,812.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,856.25 : 403,342.74 = 81,862.89 : x
  2. Step 2: Convert to fraction form
    268,856.25/403,342.74 = 81,862.89/x
  3. Step 3: Cross multiply
    268,856.25x = 403,342.74 × 81,862.89
  4. Step 4: Simplify right side
    268,856.25x = 33,018,802,356.92
  5. Step 5: Solve for x
    x = 33,018,802,356.92/268,856.25
  6. Step 6: Final answer
    x = 122,812.11

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