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Finding the Third Proportional to 133,680 and 289,176

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Solution

The third proportional to 133,680 and 289,176 is: 625,544.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,680 : 289,176 = 289,176 : x
  2. Step 2: Convert to fraction form
    133,680/289,176 = 289,176/x
  3. Step 3: Cross multiply
    133,680x = 289,176 × 289,176
  4. Step 4: Simplify right side
    133,680x = 83,622,758,976
  5. Step 5: Solve for x
    x = 83,622,758,976/133,680
  6. Step 6: Final answer
    x = 625,544.28

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.