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Finding the Fourth Proportional to 567.89, 851.84 and 279.26

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Solution

The fourth proportional to 567.89, 851.84 and 279.26 is: 418.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.89 : 851.84 = 279.26 : x
  2. Step 2: Convert to fraction form
    567.89/851.84 = 279.26/x
  3. Step 3: Cross multiply
    567.89x = 851.84 × 279.26
  4. Step 4: Simplify right side
    567.89x = 237,883.44
  5. Step 5: Solve for x
    x = 237,883.44/567.89
  6. Step 6: Final answer
    x = 418.89

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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.