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Finding the Third Proportional to 36,400 and 77,174

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Solution

The third proportional to 36,400 and 77,174 is: 163,621.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,400 : 77,174 = 77,174 : x
  2. Step 2: Convert to fraction form
    36,400/77,174 = 77,174/x
  3. Step 3: Cross multiply
    36,400x = 77,174 × 77,174
  4. Step 4: Simplify right side
    36,400x = 5,955,826,276
  5. Step 5: Solve for x
    x = 5,955,826,276/36,400
  6. Step 6: Final answer
    x = 163,621.60

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.