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Finding the Fourth Proportional to 564.08, 845.64 and 217.35

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Solution

The fourth proportional to 564.08, 845.64 and 217.35 is: 325.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    564.08 : 845.64 = 217.35 : x
  2. Step 2: Convert to fraction form
    564.08/845.64 = 217.35/x
  3. Step 3: Cross multiply
    564.08x = 845.64 × 217.35
  4. Step 4: Simplify right side
    564.08x = 183,799.85
  5. Step 5: Solve for x
    x = 183,799.85/564.08
  6. Step 6: Final answer
    x = 325.84

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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.