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Finding the Third Proportional to 249,903 and 539,721

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Solution

The third proportional to 249,903 and 539,721 is: 1,165,647.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,903 : 539,721 = 539,721 : x
  2. Step 2: Convert to fraction form
    249,903/539,721 = 539,721/x
  3. Step 3: Cross multiply
    249,903x = 539,721 × 539,721
  4. Step 4: Simplify right side
    249,903x = 291,298,757,841
  5. Step 5: Solve for x
    x = 291,298,757,841/249,903
  6. Step 6: Final answer
    x = 1,165,647.30

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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.