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Finding the Third Proportional to 128,606.06 and 183,450.66

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Solution

The third proportional to 128,606.06 and 183,450.66 is: 261,683.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,606.06 : 183,450.66 = 183,450.66 : x
  2. Step 2: Convert to fraction form
    128,606.06/183,450.66 = 183,450.66/x
  3. Step 3: Cross multiply
    128,606.06x = 183,450.66 × 183,450.66
  4. Step 4: Simplify right side
    128,606.06x = 33,654,143,278.56
  5. Step 5: Solve for x
    x = 33,654,143,278.56/128,606.06
  6. Step 6: Final answer
    x = 261,683.96

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.