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Finding the Third Proportional to 149,658.75 and 220,107.38

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Solution

The third proportional to 149,658.75 and 220,107.38 is: 323,718.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,658.75 : 220,107.38 = 220,107.38 : x
  2. Step 2: Convert to fraction form
    149,658.75/220,107.38 = 220,107.38/x
  3. Step 3: Cross multiply
    149,658.75x = 220,107.38 × 220,107.38
  4. Step 4: Simplify right side
    149,658.75x = 48,447,256,529.39
  5. Step 5: Solve for x
    x = 48,447,256,529.39/149,658.75
  6. Step 6: Final answer
    x = 323,718.17

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.