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Finding the Third Proportional to 361,292 and 508,330

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Solution

The third proportional to 361,292 and 508,330 is: 715,209.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,292 : 508,330 = 508,330 : x
  2. Step 2: Convert to fraction form
    361,292/508,330 = 508,330/x
  3. Step 3: Cross multiply
    361,292x = 508,330 × 508,330
  4. Step 4: Simplify right side
    361,292x = 258,399,388,900
  5. Step 5: Solve for x
    x = 258,399,388,900/361,292
  6. Step 6: Final answer
    x = 715,209.27

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.