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Finding the Third Proportional to 217,310 and 345,765

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Solution

The third proportional to 217,310 and 345,765 is: 550,151.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,310 : 345,765 = 345,765 : x
  2. Step 2: Convert to fraction form
    217,310/345,765 = 345,765/x
  3. Step 3: Cross multiply
    217,310x = 345,765 × 345,765
  4. Step 4: Simplify right side
    217,310x = 119,553,435,225
  5. Step 5: Solve for x
    x = 119,553,435,225/217,310
  6. Step 6: Final answer
    x = 550,151.56

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.