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Finding the Fourth Proportional to 253.92, 350.52 and 171.46

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Solution

The fourth proportional to 253.92, 350.52 and 171.46 is: 236.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    253.92 : 350.52 = 171.46 : x
  2. Step 2: Convert to fraction form
    253.92/350.52 = 171.46/x
  3. Step 3: Cross multiply
    253.92x = 350.52 × 171.46
  4. Step 4: Simplify right side
    253.92x = 60,100.16
  5. Step 5: Solve for x
    x = 60,100.16/253.92
  6. Step 6: Final answer
    x = 236.69

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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.