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Finding the Fourth Proportional to 565.17, 847.67 and 218.66

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Solution

The fourth proportional to 565.17, 847.67 and 218.66 is: 327.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    565.17 : 847.67 = 218.66 : x
  2. Step 2: Convert to fraction form
    565.17/847.67 = 218.66/x
  3. Step 3: Cross multiply
    565.17x = 847.67 × 218.66
  4. Step 4: Simplify right side
    565.17x = 185,352.55
  5. Step 5: Solve for x
    x = 185,352.55/565.17
  6. Step 6: Final answer
    x = 327.96

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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.