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Finding the Fourth Proportional to 497.33, 686.33 and 300.81

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Solution

The fourth proportional to 497.33, 686.33 and 300.81 is: 415.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    497.33 : 686.33 = 300.81 : x
  2. Step 2: Convert to fraction form
    497.33/686.33 = 300.81/x
  3. Step 3: Cross multiply
    497.33x = 686.33 × 300.81
  4. Step 4: Simplify right side
    497.33x = 206,453.42
  5. Step 5: Solve for x
    x = 206,453.42/497.33
  6. Step 6: Final answer
    x = 415.12

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