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Finding the Third Proportional to 181,770 and 385,716

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Solution

The third proportional to 181,770 and 385,716 is: 818,489.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,770 : 385,716 = 385,716 : x
  2. Step 2: Convert to fraction form
    181,770/385,716 = 385,716/x
  3. Step 3: Cross multiply
    181,770x = 385,716 × 385,716
  4. Step 4: Simplify right side
    181,770x = 148,776,832,656
  5. Step 5: Solve for x
    x = 148,776,832,656/181,770
  6. Step 6: Final answer
    x = 818,489.48

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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.