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Finding the Fourth Proportional to 217,811.80, 326,733.90 and 77,552.20

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Solution

The fourth proportional to 217,811.80, 326,733.90 and 77,552.20 is: 116,334.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,811.80 : 326,733.90 = 77,552.20 : x
  2. Step 2: Convert to fraction form
    217,811.80/326,733.90 = 77,552.20/x
  3. Step 3: Cross multiply
    217,811.80x = 326,733.90 × 77,552.20
  4. Step 4: Simplify right side
    217,811.80x = 25,338,932,759.58
  5. Step 5: Solve for x
    x = 25,338,932,759.58/217,811.80
  6. Step 6: Final answer
    x = 116,334.07

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