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Finding the Fourth Proportional to 564.95, 847.47 and 218.27

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Solution

The fourth proportional to 564.95, 847.47 and 218.27 is: 327.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    564.95 : 847.47 = 218.27 : x
  2. Step 2: Convert to fraction form
    564.95/847.47 = 218.27/x
  3. Step 3: Cross multiply
    564.95x = 847.47 × 218.27
  4. Step 4: Simplify right side
    564.95x = 184,971.95
  5. Step 5: Solve for x
    x = 184,971.95/564.95
  6. Step 6: Final answer
    x = 327.42

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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.