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Finding the Fourth Proportional to 345.78, 517.77 and 335.52

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Solution

The fourth proportional to 345.78, 517.77 and 335.52 is: 502.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    345.78 : 517.77 = 335.52 : x
  2. Step 2: Convert to fraction form
    345.78/517.77 = 335.52/x
  3. Step 3: Cross multiply
    345.78x = 517.77 × 335.52
  4. Step 4: Simplify right side
    345.78x = 173,722.19
  5. Step 5: Solve for x
    x = 173,722.19/345.78
  6. Step 6: Final answer
    x = 502.41

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