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Finding the Third Proportional to 131,298.75 and 288,018.75

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Solution

The third proportional to 131,298.75 and 288,018.75 is: 631,801.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,298.75 : 288,018.75 = 288,018.75 : x
  2. Step 2: Convert to fraction form
    131,298.75/288,018.75 = 288,018.75/x
  3. Step 3: Cross multiply
    131,298.75x = 288,018.75 × 288,018.75
  4. Step 4: Simplify right side
    131,298.75x = 82,954,800,351.56
  5. Step 5: Solve for x
    x = 82,954,800,351.56/131,298.75
  6. Step 6: Final answer
    x = 631,801.90

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.