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Finding the Fourth Proportional to 220,655.13, 330,982.83 and 154,224.96

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Solution

The fourth proportional to 220,655.13, 330,982.83 and 154,224.96 is: 231,337.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,655.13 : 330,982.83 = 154,224.96 : x
  2. Step 2: Convert to fraction form
    220,655.13/330,982.83 = 154,224.96/x
  3. Step 3: Cross multiply
    220,655.13x = 330,982.83 × 154,224.96
  4. Step 4: Simplify right side
    220,655.13x = 51,045,813,717.44
  5. Step 5: Solve for x
    x = 51,045,813,717.44/220,655.13
  6. Step 6: Final answer
    x = 231,337.53

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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.