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Finding the Fourth Proportional to 200,624.40, 300,936.60 and 82,256.40

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Solution

The fourth proportional to 200,624.40, 300,936.60 and 82,256.40 is: 123,384.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,624.40 : 300,936.60 = 82,256.40 : x
  2. Step 2: Convert to fraction form
    200,624.40/300,936.60 = 82,256.40/x
  3. Step 3: Cross multiply
    200,624.40x = 300,936.60 × 82,256.40
  4. Step 4: Simplify right side
    200,624.40x = 24,753,961,344.24
  5. Step 5: Solve for x
    x = 24,753,961,344.24/200,624.40
  6. Step 6: Final answer
    x = 123,384.60

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