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Finding the Fourth Proportional to 204,813.20, 307,219.80 and 57,069.20

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Solution

The fourth proportional to 204,813.20, 307,219.80 and 57,069.20 is: 85,603.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,813.20 : 307,219.80 = 57,069.20 : x
  2. Step 2: Convert to fraction form
    204,813.20/307,219.80 = 57,069.20/x
  3. Step 3: Cross multiply
    204,813.20x = 307,219.80 × 57,069.20
  4. Step 4: Simplify right side
    204,813.20x = 17,532,788,210.16
  5. Step 5: Solve for x
    x = 17,532,788,210.16/204,813.20
  6. Step 6: Final answer
    x = 85,603.80

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