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Finding the Third Proportional to 66,525 and 145,381.50

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Solution

The third proportional to 66,525 and 145,381.50 is: 317,711.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,525 : 145,381.50 = 145,381.50 : x
  2. Step 2: Convert to fraction form
    66,525/145,381.50 = 145,381.50/x
  3. Step 3: Cross multiply
    66,525x = 145,381.50 × 145,381.50
  4. Step 4: Simplify right side
    66,525x = 21,135,780,542.25
  5. Step 5: Solve for x
    x = 21,135,780,542.25/66,525
  6. Step 6: Final answer
    x = 317,711.85

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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.