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Finding the Third Proportional to 192.38 and 305.94

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Solution

The third proportional to 192.38 and 305.94 is: 486.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.38 : 305.94 = 305.94 : x
  2. Step 2: Convert to fraction form
    192.38/305.94 = 305.94/x
  3. Step 3: Cross multiply
    192.38x = 305.94 × 305.94
  4. Step 4: Simplify right side
    192.38x = 93,597.75
  5. Step 5: Solve for x
    x = 93,597.75/192.38
  6. Step 6: Final answer
    x = 486.54

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.