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Finding the Third Proportional to 77,898 and 165,518

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Solution

The third proportional to 77,898 and 165,518 is: 351,693.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,898 : 165,518 = 165,518 : x
  2. Step 2: Convert to fraction form
    77,898/165,518 = 165,518/x
  3. Step 3: Cross multiply
    77,898x = 165,518 × 165,518
  4. Step 4: Simplify right side
    77,898x = 27,396,208,324
  5. Step 5: Solve for x
    x = 27,396,208,324/77,898
  6. Step 6: Final answer
    x = 351,693.35

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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.