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Finding the Third Proportional to 118,519 and 258,340

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Solution

The third proportional to 118,519 and 258,340 is: 563,112.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,519 : 258,340 = 258,340 : x
  2. Step 2: Convert to fraction form
    118,519/258,340 = 258,340/x
  3. Step 3: Cross multiply
    118,519x = 258,340 × 258,340
  4. Step 4: Simplify right side
    118,519x = 66,739,555,600
  5. Step 5: Solve for x
    x = 66,739,555,600/118,519
  6. Step 6: Final answer
    x = 563,112.71

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.