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Finding the Third Proportional to 64,910 and 98,231

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Solution

The third proportional to 64,910 and 98,231 is: 148,657.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,910 : 98,231 = 98,231 : x
  2. Step 2: Convert to fraction form
    64,910/98,231 = 98,231/x
  3. Step 3: Cross multiply
    64,910x = 98,231 × 98,231
  4. Step 4: Simplify right side
    64,910x = 9,649,329,361
  5. Step 5: Solve for x
    x = 9,649,329,361/64,910
  6. Step 6: Final answer
    x = 148,657.05

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.