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Finding the Third Proportional to 221,940 and 347,784.75

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Solution

The third proportional to 221,940 and 347,784.75 is: 544,986.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,940 : 347,784.75 = 347,784.75 : x
  2. Step 2: Convert to fraction form
    221,940/347,784.75 = 347,784.75/x
  3. Step 3: Cross multiply
    221,940x = 347,784.75 × 347,784.75
  4. Step 4: Simplify right side
    221,940x = 120,954,232,332.56
  5. Step 5: Solve for x
    x = 120,954,232,332.56/221,940
  6. Step 6: Final answer
    x = 544,986.18

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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.