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Finding the Fourth Proportional to 220,380.48, 330,576.96 and 54,168

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Solution

The fourth proportional to 220,380.48, 330,576.96 and 54,168 is: 81,253.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,380.48 : 330,576.96 = 54,168 : x
  2. Step 2: Convert to fraction form
    220,380.48/330,576.96 = 54,168/x
  3. Step 3: Cross multiply
    220,380.48x = 330,576.96 × 54,168
  4. Step 4: Simplify right side
    220,380.48x = 17,906,692,769.28
  5. Step 5: Solve for x
    x = 17,906,692,769.28/220,380.48
  6. Step 6: Final answer
    x = 81,253.53

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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.