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Finding the Fourth Proportional to 219,561.28, 329,782.80 and 130,987.84

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Solution

The fourth proportional to 219,561.28, 329,782.80 and 130,987.84 is: 196,744.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,561.28 : 329,782.80 = 130,987.84 : x
  2. Step 2: Convert to fraction form
    219,561.28/329,782.80 = 130,987.84/x
  3. Step 3: Cross multiply
    219,561.28x = 329,782.80 × 130,987.84
  4. Step 4: Simplify right side
    219,561.28x = 43,197,536,641.15
  5. Step 5: Solve for x
    x = 43,197,536,641.15/219,561.28
  6. Step 6: Final answer
    x = 196,744.78

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