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Finding the Third Proportional to 138,647.50 and 283,866.50

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Solution

The third proportional to 138,647.50 and 283,866.50 is: 581,187.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,647.50 : 283,866.50 = 283,866.50 : x
  2. Step 2: Convert to fraction form
    138,647.50/283,866.50 = 283,866.50/x
  3. Step 3: Cross multiply
    138,647.50x = 283,866.50 × 283,866.50
  4. Step 4: Simplify right side
    138,647.50x = 80,580,189,822.25
  5. Step 5: Solve for x
    x = 80,580,189,822.25/138,647.50
  6. Step 6: Final answer
    x = 581,187.47

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.