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Finding the Third Proportional to 68,968 and 147,779

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Solution

The third proportional to 68,968 and 147,779 is: 316,648.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,968 : 147,779 = 147,779 : x
  2. Step 2: Convert to fraction form
    68,968/147,779 = 147,779/x
  3. Step 3: Cross multiply
    68,968x = 147,779 × 147,779
  4. Step 4: Simplify right side
    68,968x = 21,838,632,841
  5. Step 5: Solve for x
    x = 21,838,632,841/68,968
  6. Step 6: Final answer
    x = 316,648.78

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.