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Finding the Third Proportional to 349,769 and 513,171

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Solution

The third proportional to 349,769 and 513,171 is: 752,909.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,769 : 513,171 = 513,171 : x
  2. Step 2: Convert to fraction form
    349,769/513,171 = 513,171/x
  3. Step 3: Cross multiply
    349,769x = 513,171 × 513,171
  4. Step 4: Simplify right side
    349,769x = 263,344,475,241
  5. Step 5: Solve for x
    x = 263,344,475,241/349,769
  6. Step 6: Final answer
    x = 752,909.71

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.