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Finding the Fourth Proportional to 440.94, 661.44 and 197.40

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Solution

The fourth proportional to 440.94, 661.44 and 197.40 is: 296.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.94 : 661.44 = 197.40 : x
  2. Step 2: Convert to fraction form
    440.94/661.44 = 197.40/x
  3. Step 3: Cross multiply
    440.94x = 661.44 × 197.40
  4. Step 4: Simplify right side
    440.94x = 130,568.26
  5. Step 5: Solve for x
    x = 130,568.26/440.94
  6. Step 6: Final answer
    x = 296.11

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