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Finding the Fourth Proportional to 235.36, 352.87 and 98.29

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Solution

The fourth proportional to 235.36, 352.87 and 98.29 is: 147.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.36 : 352.87 = 98.29 : x
  2. Step 2: Convert to fraction form
    235.36/352.87 = 98.29/x
  3. Step 3: Cross multiply
    235.36x = 352.87 × 98.29
  4. Step 4: Simplify right side
    235.36x = 34,683.59
  5. Step 5: Solve for x
    x = 34,683.59/235.36
  6. Step 6: Final answer
    x = 147.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.