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Finding the Fourth Proportional to 464.56, 640.36 and 333.34

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Solution

The fourth proportional to 464.56, 640.36 and 333.34 is: 459.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    464.56 : 640.36 = 333.34 : x
  2. Step 2: Convert to fraction form
    464.56/640.36 = 333.34/x
  3. Step 3: Cross multiply
    464.56x = 640.36 × 333.34
  4. Step 4: Simplify right side
    464.56x = 213,457.60
  5. Step 5: Solve for x
    x = 213,457.60/464.56
  6. Step 6: Final answer
    x = 459.48

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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.