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Finding the Third Proportional to 303.75 and 456.47

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Solution

The third proportional to 303.75 and 456.47 is: 685.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    303.75 : 456.47 = 456.47 : x
  2. Step 2: Convert to fraction form
    303.75/456.47 = 456.47/x
  3. Step 3: Cross multiply
    303.75x = 456.47 × 456.47
  4. Step 4: Simplify right side
    303.75x = 208,363.72
  5. Step 5: Solve for x
    x = 208,363.72/303.75
  6. Step 6: Final answer
    x = 685.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.