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Finding the Fourth Proportional to 272,940.37, 409,435.22 and 104,453.89

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Solution

The fourth proportional to 272,940.37, 409,435.22 and 104,453.89 is: 156,690.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,940.37 : 409,435.22 = 104,453.89 : x
  2. Step 2: Convert to fraction form
    272,940.37/409,435.22 = 104,453.89/x
  3. Step 3: Cross multiply
    272,940.37x = 409,435.22 × 104,453.89
  4. Step 4: Simplify right side
    272,940.37x = 42,767,100,669.55
  5. Step 5: Solve for x
    x = 42,767,100,669.55/272,940.37
  6. Step 6: Final answer
    x = 156,690.27

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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.