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Finding the Third Proportional to 297,108 and 423,306

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Solution

The third proportional to 297,108 and 423,306 is: 603,107.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,108 : 423,306 = 423,306 : x
  2. Step 2: Convert to fraction form
    297,108/423,306 = 423,306/x
  3. Step 3: Cross multiply
    297,108x = 423,306 × 423,306
  4. Step 4: Simplify right side
    297,108x = 179,187,969,636
  5. Step 5: Solve for x
    x = 179,187,969,636/297,108
  6. Step 6: Final answer
    x = 603,107.19

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.