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Finding the Fourth Proportional to 564.05, 846.24 and 198.87

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Solution

The fourth proportional to 564.05, 846.24 and 198.87 is: 298.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    564.05 : 846.24 = 198.87 : x
  2. Step 2: Convert to fraction form
    564.05/846.24 = 198.87/x
  3. Step 3: Cross multiply
    564.05x = 846.24 × 198.87
  4. Step 4: Simplify right side
    564.05x = 168,291.75
  5. Step 5: Solve for x
    x = 168,291.75/564.05
  6. Step 6: Final answer
    x = 298.36

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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.