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Finding the Fourth Proportional to 255.88, 352.38 and 235.36

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Solution

The fourth proportional to 255.88, 352.38 and 235.36 is: 324.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    255.88 : 352.38 = 235.36 : x
  2. Step 2: Convert to fraction form
    255.88/352.38 = 235.36/x
  3. Step 3: Cross multiply
    255.88x = 352.38 × 235.36
  4. Step 4: Simplify right side
    255.88x = 82,936.16
  5. Step 5: Solve for x
    x = 82,936.16/255.88
  6. Step 6: Final answer
    x = 324.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.