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Finding the Fourth Proportional to 192, 286.49 and 166.08

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Solution

The fourth proportional to 192, 286.49 and 166.08 is: 247.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    192 : 286.49 = 166.08 : x
  2. Step 2: Convert to fraction form
    192/286.49 = 166.08/x
  3. Step 3: Cross multiply
    192x = 286.49 × 166.08
  4. Step 4: Simplify right side
    192x = 47,579.43
  5. Step 5: Solve for x
    x = 47,579.43/192
  6. Step 6: Final answer
    x = 247.81

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.