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Finding the Third Proportional to 361,290 and 508,326

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Solution

The third proportional to 361,290 and 508,326 is: 715,201.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,290 : 508,326 = 508,326 : x
  2. Step 2: Convert to fraction form
    361,290/508,326 = 508,326/x
  3. Step 3: Cross multiply
    361,290x = 508,326 × 508,326
  4. Step 4: Simplify right side
    361,290x = 258,395,322,276
  5. Step 5: Solve for x
    x = 258,395,322,276/361,290
  6. Step 6: Final answer
    x = 715,201.98

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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.