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Finding the Third Proportional to 84,308 and 176,411

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Solution

The third proportional to 84,308 and 176,411 is: 369,132.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,308 : 176,411 = 176,411 : x
  2. Step 2: Convert to fraction form
    84,308/176,411 = 176,411/x
  3. Step 3: Cross multiply
    84,308x = 176,411 × 176,411
  4. Step 4: Simplify right side
    84,308x = 31,120,840,921
  5. Step 5: Solve for x
    x = 31,120,840,921/84,308
  6. Step 6: Final answer
    x = 369,132.71

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.