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Finding the Third Proportional to 100,776 and 219,972

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Solution

The third proportional to 100,776 and 219,972 is: 480,150.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,776 : 219,972 = 219,972 : x
  2. Step 2: Convert to fraction form
    100,776/219,972 = 219,972/x
  3. Step 3: Cross multiply
    100,776x = 219,972 × 219,972
  4. Step 4: Simplify right side
    100,776x = 48,387,680,784
  5. Step 5: Solve for x
    x = 48,387,680,784/100,776
  6. Step 6: Final answer
    x = 480,150.84

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.