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Finding the Fourth Proportional to 200,248.70, 300,491.20 and 73,978.30

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Solution

The fourth proportional to 200,248.70, 300,491.20 and 73,978.30 is: 111,011.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,248.70 : 300,491.20 = 73,978.30 : x
  2. Step 2: Convert to fraction form
    200,248.70/300,491.20 = 73,978.30/x
  3. Step 3: Cross multiply
    200,248.70x = 300,491.20 × 73,978.30
  4. Step 4: Simplify right side
    200,248.70x = 22,229,828,609.05
  5. Step 5: Solve for x
    x = 22,229,828,609.05/200,248.70
  6. Step 6: Final answer
    x = 111,011.10

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