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Finding the Third Proportional to 39,308 and 80,664

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Solution

The third proportional to 39,308 and 80,664 is: 165,530.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,308 : 80,664 = 80,664 : x
  2. Step 2: Convert to fraction form
    39,308/80,664 = 80,664/x
  3. Step 3: Cross multiply
    39,308x = 80,664 × 80,664
  4. Step 4: Simplify right side
    39,308x = 6,506,680,896
  5. Step 5: Solve for x
    x = 6,506,680,896/39,308
  6. Step 6: Final answer
    x = 165,530.70

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.