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Finding the Fourth Proportional to 567.49, 851.00 and 220.63

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Solution

The fourth proportional to 567.49, 851.00 and 220.63 is: 330.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.49 : 851.00 = 220.63 : x
  2. Step 2: Convert to fraction form
    567.49/851.00 = 220.63/x
  3. Step 3: Cross multiply
    567.49x = 851.00 × 220.63
  4. Step 4: Simplify right side
    567.49x = 187,750.77
  5. Step 5: Solve for x
    x = 187,750.77/567.49
  6. Step 6: Final answer
    x = 330.85

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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.