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Finding the Fourth Proportional to 567.29, 850.79 and 156.45

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Solution

The fourth proportional to 567.29, 850.79 and 156.45 is: 234.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.29 : 850.79 = 156.45 : x
  2. Step 2: Convert to fraction form
    567.29/850.79 = 156.45/x
  3. Step 3: Cross multiply
    567.29x = 850.79 × 156.45
  4. Step 4: Simplify right side
    567.29x = 133,105.31
  5. Step 5: Solve for x
    x = 133,105.31/567.29
  6. Step 6: Final answer
    x = 234.64

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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.