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Finding the Third Proportional to 253,034 and 381,217.50

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Solution

The third proportional to 253,034 and 381,217.50 is: 574,336.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,034 : 381,217.50 = 381,217.50 : x
  2. Step 2: Convert to fraction form
    253,034/381,217.50 = 381,217.50/x
  3. Step 3: Cross multiply
    253,034x = 381,217.50 × 381,217.50
  4. Step 4: Simplify right side
    253,034x = 145,326,782,306.25
  5. Step 5: Solve for x
    x = 145,326,782,306.25/253,034
  6. Step 6: Final answer
    x = 574,336.98

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.