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Finding the Third Proportional to 134,722 and 289,764

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Solution

The third proportional to 134,722 and 289,764 is: 623,232.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,722 : 289,764 = 289,764 : x
  2. Step 2: Convert to fraction form
    134,722/289,764 = 289,764/x
  3. Step 3: Cross multiply
    134,722x = 289,764 × 289,764
  4. Step 4: Simplify right side
    134,722x = 83,963,175,696
  5. Step 5: Solve for x
    x = 83,963,175,696/134,722
  6. Step 6: Final answer
    x = 623,232.85

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.