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Finding the Third Proportional to 251,456 and 542,278

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Solution

The third proportional to 251,456 and 542,278 is: 1,169,450.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,456 : 542,278 = 542,278 : x
  2. Step 2: Convert to fraction form
    251,456/542,278 = 542,278/x
  3. Step 3: Cross multiply
    251,456x = 542,278 × 542,278
  4. Step 4: Simplify right side
    251,456x = 294,065,429,284
  5. Step 5: Solve for x
    x = 294,065,429,284/251,456
  6. Step 6: Final answer
    x = 1,169,450.84

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.