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Finding the Third Proportional to 78,763 and 170,648

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Solution

The third proportional to 78,763 and 170,648 is: 369,726.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,763 : 170,648 = 170,648 : x
  2. Step 2: Convert to fraction form
    78,763/170,648 = 170,648/x
  3. Step 3: Cross multiply
    78,763x = 170,648 × 170,648
  4. Step 4: Simplify right side
    78,763x = 29,120,739,904
  5. Step 5: Solve for x
    x = 29,120,739,904/78,763
  6. Step 6: Final answer
    x = 369,726.14

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.