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Finding the Third Proportional to 216,189 and 347,361.75

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Solution

The third proportional to 216,189 and 347,361.75 is: 558,123.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,189 : 347,361.75 = 347,361.75 : x
  2. Step 2: Convert to fraction form
    216,189/347,361.75 = 347,361.75/x
  3. Step 3: Cross multiply
    216,189x = 347,361.75 × 347,361.75
  4. Step 4: Simplify right side
    216,189x = 120,660,185,363.06
  5. Step 5: Solve for x
    x = 120,660,185,363.06/216,189
  6. Step 6: Final answer
    x = 558,123.61

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.