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Finding the Fourth Proportional to 219,406.14, 329,109.21 and 77,217.93

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Solution

The fourth proportional to 219,406.14, 329,109.21 and 77,217.93 is: 115,826.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,406.14 : 329,109.21 = 77,217.93 : x
  2. Step 2: Convert to fraction form
    219,406.14/329,109.21 = 77,217.93/x
  3. Step 3: Cross multiply
    219,406.14x = 329,109.21 × 77,217.93
  4. Step 4: Simplify right side
    219,406.14x = 25,413,131,940.14
  5. Step 5: Solve for x
    x = 25,413,131,940.14/219,406.14
  6. Step 6: Final answer
    x = 115,826.90

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