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Finding the Fourth Proportional to 366.48, 505.20 and 235.44

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Solution

The fourth proportional to 366.48, 505.20 and 235.44 is: 324.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.48 : 505.20 = 235.44 : x
  2. Step 2: Convert to fraction form
    366.48/505.20 = 235.44/x
  3. Step 3: Cross multiply
    366.48x = 505.20 × 235.44
  4. Step 4: Simplify right side
    366.48x = 118,944.29
  5. Step 5: Solve for x
    x = 118,944.29/366.48
  6. Step 6: Final answer
    x = 324.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.