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Finding the Fourth Proportional to 564.44, 846.90 and 320.60

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Solution

The fourth proportional to 564.44, 846.90 and 320.60 is: 481.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    564.44 : 846.90 = 320.60 : x
  2. Step 2: Convert to fraction form
    564.44/846.90 = 320.60/x
  3. Step 3: Cross multiply
    564.44x = 846.90 × 320.60
  4. Step 4: Simplify right side
    564.44x = 271,516.14
  5. Step 5: Solve for x
    x = 271,516.14/564.44
  6. Step 6: Final answer
    x = 481.04

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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.