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Finding the Third Proportional to 98,222 and 210,781

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Solution

The third proportional to 98,222 and 210,781 is: 452,328.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,222 : 210,781 = 210,781 : x
  2. Step 2: Convert to fraction form
    98,222/210,781 = 210,781/x
  3. Step 3: Cross multiply
    98,222x = 210,781 × 210,781
  4. Step 4: Simplify right side
    98,222x = 44,428,629,961
  5. Step 5: Solve for x
    x = 44,428,629,961/98,222
  6. Step 6: Final answer
    x = 452,328.70

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.