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Finding the Fourth Proportional to 200,007.20, 300,010.80 and 189,120.80

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Solution

The fourth proportional to 200,007.20, 300,010.80 and 189,120.80 is: 283,681.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,007.20 : 300,010.80 = 189,120.80 : x
  2. Step 2: Convert to fraction form
    200,007.20/300,010.80 = 189,120.80/x
  3. Step 3: Cross multiply
    200,007.20x = 300,010.80 × 189,120.80
  4. Step 4: Simplify right side
    200,007.20x = 56,738,282,504.64
  5. Step 5: Solve for x
    x = 56,738,282,504.64/200,007.20
  6. Step 6: Final answer
    x = 283,681.20

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