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Finding the Fourth Proportional to 637.94, 956.91 and 205.13

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Solution

The fourth proportional to 637.94, 956.91 and 205.13 is: 307.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.94 : 956.91 = 205.13 : x
  2. Step 2: Convert to fraction form
    637.94/956.91 = 205.13/x
  3. Step 3: Cross multiply
    637.94x = 956.91 × 205.13
  4. Step 4: Simplify right side
    637.94x = 196,290.95
  5. Step 5: Solve for x
    x = 196,290.95/637.94
  6. Step 6: Final answer
    x = 307.70

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