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Finding the Third Proportional to 133,365 and 289,627

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Solution

The third proportional to 133,365 and 289,627 is: 628,979.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,365 : 289,627 = 289,627 : x
  2. Step 2: Convert to fraction form
    133,365/289,627 = 289,627/x
  3. Step 3: Cross multiply
    133,365x = 289,627 × 289,627
  4. Step 4: Simplify right side
    133,365x = 83,883,799,129
  5. Step 5: Solve for x
    x = 83,883,799,129/133,365
  6. Step 6: Final answer
    x = 628,979.11

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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.