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Finding the Third Proportional to 221,757.50 and 347,472

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Solution

The third proportional to 221,757.50 and 347,472 is: 544,454.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,757.50 : 347,472 = 347,472 : x
  2. Step 2: Convert to fraction form
    221,757.50/347,472 = 347,472/x
  3. Step 3: Cross multiply
    221,757.50x = 347,472 × 347,472
  4. Step 4: Simplify right side
    221,757.50x = 120,736,790,784
  5. Step 5: Solve for x
    x = 120,736,790,784/221,757.50
  6. Step 6: Final answer
    x = 544,454.15

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.