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Finding the Fourth Proportional to 326,103.60, 488,766.60 and 136,563.60

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Solution

The fourth proportional to 326,103.60, 488,766.60 and 136,563.60 is: 204,682.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,103.60 : 488,766.60 = 136,563.60 : x
  2. Step 2: Convert to fraction form
    326,103.60/488,766.60 = 136,563.60/x
  3. Step 3: Cross multiply
    326,103.60x = 488,766.60 × 136,563.60
  4. Step 4: Simplify right side
    326,103.60x = 66,747,726,455.76
  5. Step 5: Solve for x
    x = 66,747,726,455.76/326,103.60
  6. Step 6: Final answer
    x = 204,682.58

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