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Finding the Fourth Proportional to 209,406.62, 313,990.56 and 142,927.22

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Solution

The fourth proportional to 209,406.62, 313,990.56 and 142,927.22 is: 214,309.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,406.62 : 313,990.56 = 142,927.22 : x
  2. Step 2: Convert to fraction form
    209,406.62/313,990.56 = 142,927.22/x
  3. Step 3: Cross multiply
    209,406.62x = 313,990.56 × 142,927.22
  4. Step 4: Simplify right side
    209,406.62x = 44,877,797,847.04
  5. Step 5: Solve for x
    x = 44,877,797,847.04/209,406.62
  6. Step 6: Final answer
    x = 214,309.36

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