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Finding the Third Proportional to 79,388 and 169,693

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Solution

The third proportional to 79,388 and 169,693 is: 362,721.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,388 : 169,693 = 169,693 : x
  2. Step 2: Convert to fraction form
    79,388/169,693 = 169,693/x
  3. Step 3: Cross multiply
    79,388x = 169,693 × 169,693
  4. Step 4: Simplify right side
    79,388x = 28,795,714,249
  5. Step 5: Solve for x
    x = 28,795,714,249/79,388
  6. Step 6: Final answer
    x = 362,721.25

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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.