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Finding the Fourth Proportional to 290.17, 435.16 and 97.75

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Solution

The fourth proportional to 290.17, 435.16 and 97.75 is: 146.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    290.17 : 435.16 = 97.75 : x
  2. Step 2: Convert to fraction form
    290.17/435.16 = 97.75/x
  3. Step 3: Cross multiply
    290.17x = 435.16 × 97.75
  4. Step 4: Simplify right side
    290.17x = 42,536.89
  5. Step 5: Solve for x
    x = 42,536.89/290.17
  6. Step 6: Final answer
    x = 146.59

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