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Finding the Fourth Proportional to 379,427.49, 569,163.51 and 142,772.22

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Solution

The fourth proportional to 379,427.49, 569,163.51 and 142,772.22 is: 214,166.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,427.49 : 569,163.51 = 142,772.22 : x
  2. Step 2: Convert to fraction form
    379,427.49/569,163.51 = 142,772.22/x
  3. Step 3: Cross multiply
    379,427.49x = 569,163.51 × 142,772.22
  4. Step 4: Simplify right side
    379,427.49x = 81,260,737,865.69
  5. Step 5: Solve for x
    x = 81,260,737,865.69/379,427.49
  6. Step 6: Final answer
    x = 214,166.71

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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.