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Finding the Third Proportional to 82,642.50 and 180,855

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Solution

The third proportional to 82,642.50 and 180,855 is: 395,783.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,642.50 : 180,855 = 180,855 : x
  2. Step 2: Convert to fraction form
    82,642.50/180,855 = 180,855/x
  3. Step 3: Cross multiply
    82,642.50x = 180,855 × 180,855
  4. Step 4: Simplify right side
    82,642.50x = 32,708,531,025
  5. Step 5: Solve for x
    x = 32,708,531,025/82,642.50
  6. Step 6: Final answer
    x = 395,783.42

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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.