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Finding the Fourth Proportional to 442.94, 665.30 and 267.59

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Solution

The fourth proportional to 442.94, 665.30 and 267.59 is: 401.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    442.94 : 665.30 = 267.59 : x
  2. Step 2: Convert to fraction form
    442.94/665.30 = 267.59/x
  3. Step 3: Cross multiply
    442.94x = 665.30 × 267.59
  4. Step 4: Simplify right side
    442.94x = 178,027.63
  5. Step 5: Solve for x
    x = 178,027.63/442.94
  6. Step 6: Final answer
    x = 401.92

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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.