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Finding the Fourth Proportional to 464.00, 640.21 and 267.51

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Solution

The fourth proportional to 464.00, 640.21 and 267.51 is: 369.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    464.00 : 640.21 = 267.51 : x
  2. Step 2: Convert to fraction form
    464.00/640.21 = 267.51/x
  3. Step 3: Cross multiply
    464.00x = 640.21 × 267.51
  4. Step 4: Simplify right side
    464.00x = 171,261.91
  5. Step 5: Solve for x
    x = 171,261.91/464.00
  6. Step 6: Final answer
    x = 369.10

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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.