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Finding the Third Proportional to 131,149.13 and 202,509.56

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Solution

The third proportional to 131,149.13 and 202,509.56 is: 312,698.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,149.13 : 202,509.56 = 202,509.56 : x
  2. Step 2: Convert to fraction form
    131,149.13/202,509.56 = 202,509.56/x
  3. Step 3: Cross multiply
    131,149.13x = 202,509.56 × 202,509.56
  4. Step 4: Simplify right side
    131,149.13x = 41,010,122,903.94
  5. Step 5: Solve for x
    x = 41,010,122,903.94/131,149.13
  6. Step 6: Final answer
    x = 312,698.41

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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.