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Finding the Fourth Proportional to 200,346.06, 276,665.16 and 128,850.60

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Solution

The fourth proportional to 200,346.06, 276,665.16 and 128,850.60 is: 177,934.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,346.06 : 276,665.16 = 128,850.60 : x
  2. Step 2: Convert to fraction form
    200,346.06/276,665.16 = 128,850.60/x
  3. Step 3: Cross multiply
    200,346.06x = 276,665.16 × 128,850.60
  4. Step 4: Simplify right side
    200,346.06x = 35,648,471,865.10
  5. Step 5: Solve for x
    x = 35,648,471,865.10/200,346.06
  6. Step 6: Final answer
    x = 177,934.48

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