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Finding the Third Proportional to 66,028.50 and 137,529

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Solution

The third proportional to 66,028.50 and 137,529 is: 286,455.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,028.50 : 137,529 = 137,529 : x
  2. Step 2: Convert to fraction form
    66,028.50/137,529 = 137,529/x
  3. Step 3: Cross multiply
    66,028.50x = 137,529 × 137,529
  4. Step 4: Simplify right side
    66,028.50x = 18,914,225,841
  5. Step 5: Solve for x
    x = 18,914,225,841/66,028.50
  6. Step 6: Final answer
    x = 286,455.48

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.