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Finding the Third Proportional to 77,774 and 170,614

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Solution

The third proportional to 77,774 and 170,614 is: 374,278.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,774 : 170,614 = 170,614 : x
  2. Step 2: Convert to fraction form
    77,774/170,614 = 170,614/x
  3. Step 3: Cross multiply
    77,774x = 170,614 × 170,614
  4. Step 4: Simplify right side
    77,774x = 29,109,136,996
  5. Step 5: Solve for x
    x = 29,109,136,996/77,774
  6. Step 6: Final answer
    x = 374,278.51

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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.