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Finding the Third Proportional to 239,278 and 503,356

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Solution

The third proportional to 239,278 and 503,356 is: 1,058,882.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,278 : 503,356 = 503,356 : x
  2. Step 2: Convert to fraction form
    239,278/503,356 = 503,356/x
  3. Step 3: Cross multiply
    239,278x = 503,356 × 503,356
  4. Step 4: Simplify right side
    239,278x = 253,367,262,736
  5. Step 5: Solve for x
    x = 253,367,262,736/239,278
  6. Step 6: Final answer
    x = 1,058,882.40

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.