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Finding the Third Proportional to 109,108 and 168,486

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Solution

The third proportional to 109,108 and 168,486 is: 260,178.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,108 : 168,486 = 168,486 : x
  2. Step 2: Convert to fraction form
    109,108/168,486 = 168,486/x
  3. Step 3: Cross multiply
    109,108x = 168,486 × 168,486
  4. Step 4: Simplify right side
    109,108x = 28,387,532,196
  5. Step 5: Solve for x
    x = 28,387,532,196/109,108
  6. Step 6: Final answer
    x = 260,178.28

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.