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Finding the Third Proportional to 120,598 and 261,284

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Solution

The third proportional to 120,598 and 261,284 is: 566,090.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,598 : 261,284 = 261,284 : x
  2. Step 2: Convert to fraction form
    120,598/261,284 = 261,284/x
  3. Step 3: Cross multiply
    120,598x = 261,284 × 261,284
  4. Step 4: Simplify right side
    120,598x = 68,269,328,656
  5. Step 5: Solve for x
    x = 68,269,328,656/120,598
  6. Step 6: Final answer
    x = 566,090.06

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.