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Finding the Third Proportional to 117,874 and 254,438

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Solution

The third proportional to 117,874 and 254,438 is: 549,219.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,874 : 254,438 = 254,438 : x
  2. Step 2: Convert to fraction form
    117,874/254,438 = 254,438/x
  3. Step 3: Cross multiply
    117,874x = 254,438 × 254,438
  4. Step 4: Simplify right side
    117,874x = 64,738,695,844
  5. Step 5: Solve for x
    x = 64,738,695,844/117,874
  6. Step 6: Final answer
    x = 549,219.47

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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.