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Finding the Fourth Proportional to 567.57, 851.25 and 156.61

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Solution

The fourth proportional to 567.57, 851.25 and 156.61 is: 234.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.57 : 851.25 = 156.61 : x
  2. Step 2: Convert to fraction form
    567.57/851.25 = 156.61/x
  3. Step 3: Cross multiply
    567.57x = 851.25 × 156.61
  4. Step 4: Simplify right side
    567.57x = 133,309.22
  5. Step 5: Solve for x
    x = 133,309.22/567.57
  6. Step 6: Final answer
    x = 234.88

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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.