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Finding the Fourth Proportional to 635.92, 953.90 and 203.40

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Solution

The fourth proportional to 635.92, 953.90 and 203.40 is: 305.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.92 : 953.90 = 203.40 : x
  2. Step 2: Convert to fraction form
    635.92/953.90 = 203.40/x
  3. Step 3: Cross multiply
    635.92x = 953.90 × 203.40
  4. Step 4: Simplify right side
    635.92x = 194,023.26
  5. Step 5: Solve for x
    x = 194,023.26/635.92
  6. Step 6: Final answer
    x = 305.11

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