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Finding the Third Proportional to 215,728 and 453,765

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Solution

The third proportional to 215,728 and 453,765 is: 954,455.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,728 : 453,765 = 453,765 : x
  2. Step 2: Convert to fraction form
    215,728/453,765 = 453,765/x
  3. Step 3: Cross multiply
    215,728x = 453,765 × 453,765
  4. Step 4: Simplify right side
    215,728x = 205,902,675,225
  5. Step 5: Solve for x
    x = 205,902,675,225/215,728
  6. Step 6: Final answer
    x = 954,455.03

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.