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Finding the Fourth Proportional to 445,171.28, 666,866.52 and 267,581.84

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Solution

The fourth proportional to 445,171.28, 666,866.52 and 267,581.84 is: 400,837.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,171.28 : 666,866.52 = 267,581.84 : x
  2. Step 2: Convert to fraction form
    445,171.28/666,866.52 = 267,581.84/x
  3. Step 3: Cross multiply
    445,171.28x = 666,866.52 × 267,581.84
  4. Step 4: Simplify right side
    445,171.28x = 178,441,370,456.00
  5. Step 5: Solve for x
    x = 178,441,370,456.00/445,171.28
  6. Step 6: Final answer
    x = 400,837.56

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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.