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Finding the Fourth Proportional to 481,984.82, 665,120.94 and 267,128.54

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Solution

The fourth proportional to 481,984.82, 665,120.94 and 267,128.54 is: 368,627.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,984.82 : 665,120.94 = 267,128.54 : x
  2. Step 2: Convert to fraction form
    481,984.82/665,120.94 = 267,128.54/x
  3. Step 3: Cross multiply
    481,984.82x = 665,120.94 × 267,128.54
  4. Step 4: Simplify right side
    481,984.82x = 177,672,785,625.63
  5. Step 5: Solve for x
    x = 177,672,785,625.63/481,984.82
  6. Step 6: Final answer
    x = 368,627.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.