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Finding the Third Proportional to 68.98 and 150.29

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Solution

The third proportional to 68.98 and 150.29 is: 327.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68.98 : 150.29 = 150.29 : x
  2. Step 2: Convert to fraction form
    68.98/150.29 = 150.29/x
  3. Step 3: Cross multiply
    68.98x = 150.29 × 150.29
  4. Step 4: Simplify right side
    68.98x = 22,587.98
  5. Step 5: Solve for x
    x = 22,587.98/68.98
  6. Step 6: Final answer
    x = 327.47

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.