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Finding the Third Proportional to 74,207 and 164,420

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Solution

The third proportional to 74,207 and 164,420 is: 364,304.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,207 : 164,420 = 164,420 : x
  2. Step 2: Convert to fraction form
    74,207/164,420 = 164,420/x
  3. Step 3: Cross multiply
    74,207x = 164,420 × 164,420
  4. Step 4: Simplify right side
    74,207x = 27,033,936,400
  5. Step 5: Solve for x
    x = 27,033,936,400/74,207
  6. Step 6: Final answer
    x = 364,304.40

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.