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Finding the Third Proportional to 115,386 and 248,628

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Solution

The third proportional to 115,386 and 248,628 is: 535,731.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,386 : 248,628 = 248,628 : x
  2. Step 2: Convert to fraction form
    115,386/248,628 = 248,628/x
  3. Step 3: Cross multiply
    115,386x = 248,628 × 248,628
  4. Step 4: Simplify right side
    115,386x = 61,815,882,384
  5. Step 5: Solve for x
    x = 61,815,882,384/115,386
  6. Step 6: Final answer
    x = 535,731.22

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.