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Finding the Third Proportional to 143,979.25 and 198,472.50

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Solution

The third proportional to 143,979.25 and 198,472.50 is: 273,590.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,979.25 : 198,472.50 = 198,472.50 : x
  2. Step 2: Convert to fraction form
    143,979.25/198,472.50 = 198,472.50/x
  3. Step 3: Cross multiply
    143,979.25x = 198,472.50 × 198,472.50
  4. Step 4: Simplify right side
    143,979.25x = 39,391,333,256.25
  5. Step 5: Solve for x
    x = 39,391,333,256.25/143,979.25
  6. Step 6: Final answer
    x = 273,590.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.