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Finding the Fourth Proportional to 220,149.29, 330,270.99 and 68,343.02

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Solution

The fourth proportional to 220,149.29, 330,270.99 and 68,343.02 is: 102,529.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,149.29 : 330,270.99 = 68,343.02 : x
  2. Step 2: Convert to fraction form
    220,149.29/330,270.99 = 68,343.02/x
  3. Step 3: Cross multiply
    220,149.29x = 330,270.99 × 68,343.02
  4. Step 4: Simplify right side
    220,149.29x = 22,571,716,205.86
  5. Step 5: Solve for x
    x = 22,571,716,205.86/220,149.29
  6. Step 6: Final answer
    x = 102,529.13

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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.