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Finding the Fourth Proportional to 463.82, 640.18 and 267.32

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Solution

The fourth proportional to 463.82, 640.18 and 267.32 is: 368.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    463.82 : 640.18 = 267.32 : x
  2. Step 2: Convert to fraction form
    463.82/640.18 = 267.32/x
  3. Step 3: Cross multiply
    463.82x = 640.18 × 267.32
  4. Step 4: Simplify right side
    463.82x = 171,132.92
  5. Step 5: Solve for x
    x = 171,132.92/463.82
  6. Step 6: Final answer
    x = 368.96

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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.