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Finding the Third Proportional to 138,655.13 and 283,881.38

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Solution

The third proportional to 138,655.13 and 283,881.38 is: 581,216.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,655.13 : 283,881.38 = 283,881.38 : x
  2. Step 2: Convert to fraction form
    138,655.13/283,881.38 = 283,881.38/x
  3. Step 3: Cross multiply
    138,655.13x = 283,881.38 × 283,881.38
  4. Step 4: Simplify right side
    138,655.13x = 80,588,635,071.89
  5. Step 5: Solve for x
    x = 80,588,635,071.89/138,655.13
  6. Step 6: Final answer
    x = 581,216.42

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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.