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Finding the Third Proportional to 77,352 and 164,820

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Solution

The third proportional to 77,352 and 164,820 is: 351,194.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,352 : 164,820 = 164,820 : x
  2. Step 2: Convert to fraction form
    77,352/164,820 = 164,820/x
  3. Step 3: Cross multiply
    77,352x = 164,820 × 164,820
  4. Step 4: Simplify right side
    77,352x = 27,165,632,400
  5. Step 5: Solve for x
    x = 27,165,632,400/77,352
  6. Step 6: Final answer
    x = 351,194.96

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.