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Finding the Third Proportional to 68,760 and 148,776

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Solution

The third proportional to 68,760 and 148,776 is: 321,906.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,760 : 148,776 = 148,776 : x
  2. Step 2: Convert to fraction form
    68,760/148,776 = 148,776/x
  3. Step 3: Cross multiply
    68,760x = 148,776 × 148,776
  4. Step 4: Simplify right side
    68,760x = 22,134,298,176
  5. Step 5: Solve for x
    x = 22,134,298,176/68,760
  6. Step 6: Final answer
    x = 321,906.61

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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.