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Finding the Fourth Proportional to 564.23, 845.40 and 401.11

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Solution

The fourth proportional to 564.23, 845.40 and 401.11 is: 600.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    564.23 : 845.40 = 401.11 : x
  2. Step 2: Convert to fraction form
    564.23/845.40 = 401.11/x
  3. Step 3: Cross multiply
    564.23x = 845.40 × 401.11
  4. Step 4: Simplify right side
    564.23x = 339,098.39
  5. Step 5: Solve for x
    x = 339,098.39/564.23
  6. Step 6: Final answer
    x = 600.99

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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.