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Finding the Third Proportional to 126,748 and 272,216

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Solution

The third proportional to 126,748 and 272,216 is: 584,636.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,748 : 272,216 = 272,216 : x
  2. Step 2: Convert to fraction form
    126,748/272,216 = 272,216/x
  3. Step 3: Cross multiply
    126,748x = 272,216 × 272,216
  4. Step 4: Simplify right side
    126,748x = 74,101,550,656
  5. Step 5: Solve for x
    x = 74,101,550,656/126,748
  6. Step 6: Final answer
    x = 584,636.84

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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.