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Finding the Third Proportional to 361,286 and 508,320

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Solution

The third proportional to 361,286 and 508,320 is: 715,193.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,286 : 508,320 = 508,320 : x
  2. Step 2: Convert to fraction form
    361,286/508,320 = 508,320/x
  3. Step 3: Cross multiply
    361,286x = 508,320 × 508,320
  4. Step 4: Simplify right side
    361,286x = 258,389,222,400
  5. Step 5: Solve for x
    x = 258,389,222,400/361,286
  6. Step 6: Final answer
    x = 715,193.01

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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.