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Finding the Third Proportional to 212,115.75 and 457,441.50

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Solution

The third proportional to 212,115.75 and 457,441.50 is: 986,502.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,115.75 : 457,441.50 = 457,441.50 : x
  2. Step 2: Convert to fraction form
    212,115.75/457,441.50 = 457,441.50/x
  3. Step 3: Cross multiply
    212,115.75x = 457,441.50 × 457,441.50
  4. Step 4: Simplify right side
    212,115.75x = 209,252,725,922.25
  5. Step 5: Solve for x
    x = 209,252,725,922.25/212,115.75
  6. Step 6: Final answer
    x = 986,502.54

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.