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Finding the Third Proportional to 133,740 and 291,454

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Solution

The third proportional to 133,740 and 291,454 is: 635,153.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,740 : 291,454 = 291,454 : x
  2. Step 2: Convert to fraction form
    133,740/291,454 = 291,454/x
  3. Step 3: Cross multiply
    133,740x = 291,454 × 291,454
  4. Step 4: Simplify right side
    133,740x = 84,945,434,116
  5. Step 5: Solve for x
    x = 84,945,434,116/133,740
  6. Step 6: Final answer
    x = 635,153.54

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.