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Finding the Fourth Proportional to 171.63, 236.55 and 124.37

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Solution

The fourth proportional to 171.63, 236.55 and 124.37 is: 171.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    171.63 : 236.55 = 124.37 : x
  2. Step 2: Convert to fraction form
    171.63/236.55 = 124.37/x
  3. Step 3: Cross multiply
    171.63x = 236.55 × 124.37
  4. Step 4: Simplify right side
    171.63x = 29,418.54
  5. Step 5: Solve for x
    x = 29,418.54/171.63
  6. Step 6: Final answer
    x = 171.41

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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.