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Finding the Fourth Proportional to 473.18, 709.22 and 308.42

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Solution

The fourth proportional to 473.18, 709.22 and 308.42 is: 462.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    473.18 : 709.22 = 308.42 : x
  2. Step 2: Convert to fraction form
    473.18/709.22 = 308.42/x
  3. Step 3: Cross multiply
    473.18x = 709.22 × 308.42
  4. Step 4: Simplify right side
    473.18x = 218,737.63
  5. Step 5: Solve for x
    x = 218,737.63/473.18
  6. Step 6: Final answer
    x = 462.27

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