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Finding the Fourth Proportional to 528.97, 793.17 and 163.66

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Solution

The fourth proportional to 528.97, 793.17 and 163.66 is: 245.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    528.97 : 793.17 = 163.66 : x
  2. Step 2: Convert to fraction form
    528.97/793.17 = 163.66/x
  3. Step 3: Cross multiply
    528.97x = 793.17 × 163.66
  4. Step 4: Simplify right side
    528.97x = 129,810.20
  5. Step 5: Solve for x
    x = 129,810.20/528.97
  6. Step 6: Final answer
    x = 245.40

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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.