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Finding the Fourth Proportional to 655.56, 982.89 and 290.15

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Solution

The fourth proportional to 655.56, 982.89 and 290.15 is: 435.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    655.56 : 982.89 = 290.15 : x
  2. Step 2: Convert to fraction form
    655.56/982.89 = 290.15/x
  3. Step 3: Cross multiply
    655.56x = 982.89 × 290.15
  4. Step 4: Simplify right side
    655.56x = 285,187.99
  5. Step 5: Solve for x
    x = 285,187.99/655.56
  6. Step 6: Final answer
    x = 435.03

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