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Finding the Fourth Proportional to 326,101.60, 488,763.60 and 136,561.60

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Solution

The fourth proportional to 326,101.60, 488,763.60 and 136,561.60 is: 204,679.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,101.60 : 488,763.60 = 136,561.60 : x
  2. Step 2: Convert to fraction form
    326,101.60/488,763.60 = 136,561.60/x
  3. Step 3: Cross multiply
    326,101.60x = 488,763.60 × 136,561.60
  4. Step 4: Simplify right side
    326,101.60x = 66,746,339,237.76
  5. Step 5: Solve for x
    x = 66,746,339,237.76/326,101.60
  6. Step 6: Final answer
    x = 204,679.58

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