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Finding the Third Proportional to 77,908 and 170,557

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Solution

The third proportional to 77,908 and 170,557 is: 373,385.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,908 : 170,557 = 170,557 : x
  2. Step 2: Convert to fraction form
    77,908/170,557 = 170,557/x
  3. Step 3: Cross multiply
    77,908x = 170,557 × 170,557
  4. Step 4: Simplify right side
    77,908x = 29,089,690,249
  5. Step 5: Solve for x
    x = 29,089,690,249/77,908
  6. Step 6: Final answer
    x = 373,385.15

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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.