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Finding the Fourth Proportional to 171, 235.46 and 146.39

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Solution

The fourth proportional to 171, 235.46 and 146.39 is: 201.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    171 : 235.46 = 146.39 : x
  2. Step 2: Convert to fraction form
    171/235.46 = 146.39/x
  3. Step 3: Cross multiply
    171x = 235.46 × 146.39
  4. Step 4: Simplify right side
    171x = 34,468.99
  5. Step 5: Solve for x
    x = 34,468.99/171
  6. Step 6: Final answer
    x = 201.57

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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.