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Finding the Fourth Proportional to 220,999.87, 331,664.78 and 149,753.51

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Solution

The fourth proportional to 220,999.87, 331,664.78 and 149,753.51 is: 224,742.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,999.87 : 331,664.78 = 149,753.51 : x
  2. Step 2: Convert to fraction form
    220,999.87/331,664.78 = 149,753.51/x
  3. Step 3: Cross multiply
    220,999.87x = 331,664.78 × 149,753.51
  4. Step 4: Simplify right side
    220,999.87x = 49,667,963,664.44
  5. Step 5: Solve for x
    x = 49,667,963,664.44/220,999.87
  6. Step 6: Final answer
    x = 224,742.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.