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Finding the Fourth Proportional to 200,788.72, 277,041.92 and 120,185.60

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Solution

The fourth proportional to 200,788.72, 277,041.92 and 120,185.60 is: 165,828.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,788.72 : 277,041.92 = 120,185.60 : x
  2. Step 2: Convert to fraction form
    200,788.72/277,041.92 = 120,185.60/x
  3. Step 3: Cross multiply
    200,788.72x = 277,041.92 × 120,185.60
  4. Step 4: Simplify right side
    200,788.72x = 33,296,449,380.35
  5. Step 5: Solve for x
    x = 33,296,449,380.35/200,788.72
  6. Step 6: Final answer
    x = 165,828.29

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