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Finding the Fourth Proportional to 264,008.40, 396,012.60 and 262,258.80

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Solution

The fourth proportional to 264,008.40, 396,012.60 and 262,258.80 is: 393,388.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,008.40 : 396,012.60 = 262,258.80 : x
  2. Step 2: Convert to fraction form
    264,008.40/396,012.60 = 262,258.80/x
  3. Step 3: Cross multiply
    264,008.40x = 396,012.60 × 262,258.80
  4. Step 4: Simplify right side
    264,008.40x = 103,857,789,260.88
  5. Step 5: Solve for x
    x = 103,857,789,260.88/264,008.40
  6. Step 6: Final answer
    x = 393,388.20

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