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Finding the Third Proportional to 77,228 and 169,217

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Solution

The third proportional to 77,228 and 169,217 is: 370,777.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,228 : 169,217 = 169,217 : x
  2. Step 2: Convert to fraction form
    77,228/169,217 = 169,217/x
  3. Step 3: Cross multiply
    77,228x = 169,217 × 169,217
  4. Step 4: Simplify right side
    77,228x = 28,634,393,089
  5. Step 5: Solve for x
    x = 28,634,393,089/77,228
  6. Step 6: Final answer
    x = 370,777.35

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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.