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Finding the Third Proportional to 131,883.75 and 289,039.50

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Solution

The third proportional to 131,883.75 and 289,039.50 is: 633,465.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,883.75 : 289,039.50 = 289,039.50 : x
  2. Step 2: Convert to fraction form
    131,883.75/289,039.50 = 289,039.50/x
  3. Step 3: Cross multiply
    131,883.75x = 289,039.50 × 289,039.50
  4. Step 4: Simplify right side
    131,883.75x = 83,543,832,560.25
  5. Step 5: Solve for x
    x = 83,543,832,560.25/131,883.75
  6. Step 6: Final answer
    x = 633,465.70

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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.