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Finding the Third Proportional to 128,260.13 and 182,088

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Solution

The third proportional to 128,260.13 and 182,088 is: 258,506.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,260.13 : 182,088 = 182,088 : x
  2. Step 2: Convert to fraction form
    128,260.13/182,088 = 182,088/x
  3. Step 3: Cross multiply
    128,260.13x = 182,088 × 182,088
  4. Step 4: Simplify right side
    128,260.13x = 33,156,039,744
  5. Step 5: Solve for x
    x = 33,156,039,744/128,260.13
  6. Step 6: Final answer
    x = 258,506.22

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.