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Finding the Fourth Proportional to 464.06, 640.46 and 267.59

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Solution

The fourth proportional to 464.06, 640.46 and 267.59 is: 369.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    464.06 : 640.46 = 267.59 : x
  2. Step 2: Convert to fraction form
    464.06/640.46 = 267.59/x
  3. Step 3: Cross multiply
    464.06x = 640.46 × 267.59
  4. Step 4: Simplify right side
    464.06x = 171,380.69
  5. Step 5: Solve for x
    x = 171,380.69/464.06
  6. Step 6: Final answer
    x = 369.31

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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.