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Finding the Fourth Proportional to 473.08, 709.88 and 199.12

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Solution

The fourth proportional to 473.08, 709.88 and 199.12 is: 298.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    473.08 : 709.88 = 199.12 : x
  2. Step 2: Convert to fraction form
    473.08/709.88 = 199.12/x
  3. Step 3: Cross multiply
    473.08x = 709.88 × 199.12
  4. Step 4: Simplify right side
    473.08x = 141,351.31
  5. Step 5: Solve for x
    x = 141,351.31/473.08
  6. Step 6: Final answer
    x = 298.79

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