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Finding the Fourth Proportional to 442.63, 610.63 and 267.94

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Solution

The fourth proportional to 442.63, 610.63 and 267.94 is: 369.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    442.63 : 610.63 = 267.94 : x
  2. Step 2: Convert to fraction form
    442.63/610.63 = 267.94/x
  3. Step 3: Cross multiply
    442.63x = 610.63 × 267.94
  4. Step 4: Simplify right side
    442.63x = 163,612.20
  5. Step 5: Solve for x
    x = 163,612.20/442.63
  6. Step 6: Final answer
    x = 369.64

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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.