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Finding the Third Proportional to 298.06 and 453.19

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Solution

The third proportional to 298.06 and 453.19 is: 689.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    298.06 : 453.19 = 453.19 : x
  2. Step 2: Convert to fraction form
    298.06/453.19 = 453.19/x
  3. Step 3: Cross multiply
    298.06x = 453.19 × 453.19
  4. Step 4: Simplify right side
    298.06x = 205,378.91
  5. Step 5: Solve for x
    x = 205,378.91/298.06
  6. Step 6: Final answer
    x = 689.05

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.