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Finding the Fourth Proportional to 464.12, 640.51 and 267.63

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Solution

The fourth proportional to 464.12, 640.51 and 267.63 is: 369.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    464.12 : 640.51 = 267.63 : x
  2. Step 2: Convert to fraction form
    464.12/640.51 = 267.63/x
  3. Step 3: Cross multiply
    464.12x = 640.51 × 267.63
  4. Step 4: Simplify right side
    464.12x = 171,419.69
  5. Step 5: Solve for x
    x = 171,419.69/464.12
  6. Step 6: Final answer
    x = 369.34

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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.