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Finding the Fourth Proportional to 528.92, 793.12 and 163.56

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Solution

The fourth proportional to 528.92, 793.12 and 163.56 is: 245.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    528.92 : 793.12 = 163.56 : x
  2. Step 2: Convert to fraction form
    528.92/793.12 = 163.56/x
  3. Step 3: Cross multiply
    528.92x = 793.12 × 163.56
  4. Step 4: Simplify right side
    528.92x = 129,722.71
  5. Step 5: Solve for x
    x = 129,722.71/528.92
  6. Step 6: Final answer
    x = 245.26

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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.