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Finding the Third Proportional to 249,313 and 548,486

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Solution

The third proportional to 249,313 and 548,486 is: 1,206,663.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,313 : 548,486 = 548,486 : x
  2. Step 2: Convert to fraction form
    249,313/548,486 = 548,486/x
  3. Step 3: Cross multiply
    249,313x = 548,486 × 548,486
  4. Step 4: Simplify right side
    249,313x = 300,836,892,196
  5. Step 5: Solve for x
    x = 300,836,892,196/249,313
  6. Step 6: Final answer
    x = 1,206,663.48

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.