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Finding the Third Proportional to 136,556 and 300,213

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Solution

The third proportional to 136,556 and 300,213 is: 660,006.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,556 : 300,213 = 300,213 : x
  2. Step 2: Convert to fraction form
    136,556/300,213 = 300,213/x
  3. Step 3: Cross multiply
    136,556x = 300,213 × 300,213
  4. Step 4: Simplify right side
    136,556x = 90,127,845,369
  5. Step 5: Solve for x
    x = 90,127,845,369/136,556
  6. Step 6: Final answer
    x = 660,006.48

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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.