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Finding the Fourth Proportional to 407.92, 611.88 and 134.03

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Solution

The fourth proportional to 407.92, 611.88 and 134.03 is: 201.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    407.92 : 611.88 = 134.03 : x
  2. Step 2: Convert to fraction form
    407.92/611.88 = 134.03/x
  3. Step 3: Cross multiply
    407.92x = 611.88 × 134.03
  4. Step 4: Simplify right side
    407.92x = 82,010.01
  5. Step 5: Solve for x
    x = 82,010.01/407.92
  6. Step 6: Final answer
    x = 201.05

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