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Finding the Fourth Proportional to 497.00, 686.21 and 322.65

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Solution

The fourth proportional to 497.00, 686.21 and 322.65 is: 445.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    497.00 : 686.21 = 322.65 : x
  2. Step 2: Convert to fraction form
    497.00/686.21 = 322.65/x
  3. Step 3: Cross multiply
    497.00x = 686.21 × 322.65
  4. Step 4: Simplify right side
    497.00x = 221,404.04
  5. Step 5: Solve for x
    x = 221,404.04/497.00
  6. Step 6: Final answer
    x = 445.48

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