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Finding the Fourth Proportional to 567.02, 851.00 and 220.61

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Solution

The fourth proportional to 567.02, 851.00 and 220.61 is: 331.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.02 : 851.00 = 220.61 : x
  2. Step 2: Convert to fraction form
    567.02/851.00 = 220.61/x
  3. Step 3: Cross multiply
    567.02x = 851.00 × 220.61
  4. Step 4: Simplify right side
    567.02x = 187,733.75
  5. Step 5: Solve for x
    x = 187,733.75/567.02
  6. Step 6: Final answer
    x = 331.09

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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.