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Finding the Fourth Proportional to 259.88, 389.80 and 97.44

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Solution

The fourth proportional to 259.88, 389.80 and 97.44 is: 146.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    259.88 : 389.80 = 97.44 : x
  2. Step 2: Convert to fraction form
    259.88/389.80 = 97.44/x
  3. Step 3: Cross multiply
    259.88x = 389.80 × 97.44
  4. Step 4: Simplify right side
    259.88x = 37,982.11
  5. Step 5: Solve for x
    x = 37,982.11/259.88
  6. Step 6: Final answer
    x = 146.15

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