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Finding the Fourth Proportional to 397.31, 594.99 and 328.32

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Solution

The fourth proportional to 397.31, 594.99 and 328.32 is: 491.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    397.31 : 594.99 = 328.32 : x
  2. Step 2: Convert to fraction form
    397.31/594.99 = 328.32/x
  3. Step 3: Cross multiply
    397.31x = 594.99 × 328.32
  4. Step 4: Simplify right side
    397.31x = 195,347.12
  5. Step 5: Solve for x
    x = 195,347.12/397.31
  6. Step 6: Final answer
    x = 491.68

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