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Finding the Fourth Proportional to 481,971.90, 665,143.66 and 267,112

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Solution

The fourth proportional to 481,971.90, 665,143.66 and 267,112 is: 368,627.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,971.90 : 665,143.66 = 267,112 : x
  2. Step 2: Convert to fraction form
    481,971.90/665,143.66 = 267,112/x
  3. Step 3: Cross multiply
    481,971.90x = 665,143.66 × 267,112
  4. Step 4: Simplify right side
    481,971.90x = 177,667,853,309.92
  5. Step 5: Solve for x
    x = 177,667,853,309.92/481,971.90
  6. Step 6: Final answer
    x = 368,627.00

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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.