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Finding the Third Proportional to 136,209 and 288,799

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Solution

The third proportional to 136,209 and 288,799 is: 612,330.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,209 : 288,799 = 288,799 : x
  2. Step 2: Convert to fraction form
    136,209/288,799 = 288,799/x
  3. Step 3: Cross multiply
    136,209x = 288,799 × 288,799
  4. Step 4: Simplify right side
    136,209x = 83,404,862,401
  5. Step 5: Solve for x
    x = 83,404,862,401/136,209
  6. Step 6: Final answer
    x = 612,330.04

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.