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Finding the Fourth Proportional to 291,784.80, 402,763.49 and 170,965.20

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Solution

The fourth proportional to 291,784.80, 402,763.49 and 170,965.20 is: 235,990.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,784.80 : 402,763.49 = 170,965.20 : x
  2. Step 2: Convert to fraction form
    291,784.80/402,763.49 = 170,965.20/x
  3. Step 3: Cross multiply
    291,784.80x = 402,763.49 × 170,965.20
  4. Step 4: Simplify right side
    291,784.80x = 68,858,540,620.55
  5. Step 5: Solve for x
    x = 68,858,540,620.55/291,784.80
  6. Step 6: Final answer
    x = 235,990.84

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