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Finding the Third Proportional to 129,822.75 and 199,280.25

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Solution

The third proportional to 129,822.75 and 199,280.25 is: 305,898.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,822.75 : 199,280.25 = 199,280.25 : x
  2. Step 2: Convert to fraction form
    129,822.75/199,280.25 = 199,280.25/x
  3. Step 3: Cross multiply
    129,822.75x = 199,280.25 × 199,280.25
  4. Step 4: Simplify right side
    129,822.75x = 39,712,618,040.06
  5. Step 5: Solve for x
    x = 39,712,618,040.06/129,822.75
  6. Step 6: Final answer
    x = 305,898.76

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.