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Finding the Third Proportional to 133,121 and 289,570

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Solution

The third proportional to 133,121 and 289,570 is: 629,883.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,121 : 289,570 = 289,570 : x
  2. Step 2: Convert to fraction form
    133,121/289,570 = 289,570/x
  3. Step 3: Cross multiply
    133,121x = 289,570 × 289,570
  4. Step 4: Simplify right side
    133,121x = 83,850,784,900
  5. Step 5: Solve for x
    x = 83,850,784,900/133,121
  6. Step 6: Final answer
    x = 629,883.98

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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.