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Finding the Third Proportional to 298.69 and 450

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Solution

The third proportional to 298.69 and 450 is: 677.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    298.69 : 450 = 450 : x
  2. Step 2: Convert to fraction form
    298.69/450 = 450/x
  3. Step 3: Cross multiply
    298.69x = 450 × 450
  4. Step 4: Simplify right side
    298.69x = 202,500
  5. Step 5: Solve for x
    x = 202,500/298.69
  6. Step 6: Final answer
    x = 677.97

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.