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Finding the Fourth Proportional to 466.12, 699.20 and 443.08

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Solution

The fourth proportional to 466.12, 699.20 and 443.08 is: 664.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    466.12 : 699.20 = 443.08 : x
  2. Step 2: Convert to fraction form
    466.12/699.20 = 443.08/x
  3. Step 3: Cross multiply
    466.12x = 699.20 × 443.08
  4. Step 4: Simplify right side
    466.12x = 309,801.54
  5. Step 5: Solve for x
    x = 309,801.54/466.12
  6. Step 6: Final answer
    x = 664.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.