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Finding the Fourth Proportional to 434.78, 652.17 and 146.42

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Solution

The fourth proportional to 434.78, 652.17 and 146.42 is: 219.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    434.78 : 652.17 = 146.42 : x
  2. Step 2: Convert to fraction form
    434.78/652.17 = 146.42/x
  3. Step 3: Cross multiply
    434.78x = 652.17 × 146.42
  4. Step 4: Simplify right side
    434.78x = 95,488.37
  5. Step 5: Solve for x
    x = 95,488.37/434.78
  6. Step 6: Final answer
    x = 219.63

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