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Finding the Third Proportional to 193.31 and 299.91

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Solution

The third proportional to 193.31 and 299.91 is: 465.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.31 : 299.91 = 299.91 : x
  2. Step 2: Convert to fraction form
    193.31/299.91 = 299.91/x
  3. Step 3: Cross multiply
    193.31x = 299.91 × 299.91
  4. Step 4: Simplify right side
    193.31x = 89,943.76
  5. Step 5: Solve for x
    x = 89,943.76/193.31
  6. Step 6: Final answer
    x = 465.28

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.