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Finding the Fourth Proportional to 423.75, 635.66 and 192.66

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Solution

The fourth proportional to 423.75, 635.66 and 192.66 is: 289.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    423.75 : 635.66 = 192.66 : x
  2. Step 2: Convert to fraction form
    423.75/635.66 = 192.66/x
  3. Step 3: Cross multiply
    423.75x = 635.66 × 192.66
  4. Step 4: Simplify right side
    423.75x = 122,467.21
  5. Step 5: Solve for x
    x = 122,467.21/423.75
  6. Step 6: Final answer
    x = 289.01

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