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Finding the Third Proportional to 137,446 and 291,740

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Solution

The third proportional to 137,446 and 291,740 is: 619,241.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,446 : 291,740 = 291,740 : x
  2. Step 2: Convert to fraction form
    137,446/291,740 = 291,740/x
  3. Step 3: Cross multiply
    137,446x = 291,740 × 291,740
  4. Step 4: Simplify right side
    137,446x = 85,112,227,600
  5. Step 5: Solve for x
    x = 85,112,227,600/137,446
  6. Step 6: Final answer
    x = 619,241.21

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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.