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Finding the Third Proportional to 74,908 and 163,809

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Solution

The third proportional to 74,908 and 163,809 is: 358,217.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,908 : 163,809 = 163,809 : x
  2. Step 2: Convert to fraction form
    74,908/163,809 = 163,809/x
  3. Step 3: Cross multiply
    74,908x = 163,809 × 163,809
  4. Step 4: Simplify right side
    74,908x = 26,833,388,481
  5. Step 5: Solve for x
    x = 26,833,388,481/74,908
  6. Step 6: Final answer
    x = 358,217.93

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.