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Finding the Fourth Proportional to 363.02, 543.92 and 157.68

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Solution

The fourth proportional to 363.02, 543.92 and 157.68 is: 236.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.02 : 543.92 = 157.68 : x
  2. Step 2: Convert to fraction form
    363.02/543.92 = 157.68/x
  3. Step 3: Cross multiply
    363.02x = 543.92 × 157.68
  4. Step 4: Simplify right side
    363.02x = 85,764.52
  5. Step 5: Solve for x
    x = 85,764.52/363.02
  6. Step 6: Final answer
    x = 236.26

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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.