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Finding the Third Proportional to 210,975 and 454,931

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Solution

The third proportional to 210,975 and 454,931 is: 980,979.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,975 : 454,931 = 454,931 : x
  2. Step 2: Convert to fraction form
    210,975/454,931 = 454,931/x
  3. Step 3: Cross multiply
    210,975x = 454,931 × 454,931
  4. Step 4: Simplify right side
    210,975x = 206,962,214,761
  5. Step 5: Solve for x
    x = 206,962,214,761/210,975
  6. Step 6: Final answer
    x = 980,979.81

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.