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Finding the Third Proportional to 98,412 and 209,712

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Solution

The third proportional to 98,412 and 209,712 is: 446,887.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,412 : 209,712 = 209,712 : x
  2. Step 2: Convert to fraction form
    98,412/209,712 = 209,712/x
  3. Step 3: Cross multiply
    98,412x = 209,712 × 209,712
  4. Step 4: Simplify right side
    98,412x = 43,979,122,944
  5. Step 5: Solve for x
    x = 43,979,122,944/98,412
  6. Step 6: Final answer
    x = 446,887.81

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.