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Finding the Fourth Proportional to 366.36, 505.35 and 235.20

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Solution

The fourth proportional to 366.36, 505.35 and 235.20 is: 324.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.36 : 505.35 = 235.20 : x
  2. Step 2: Convert to fraction form
    366.36/505.35 = 235.20/x
  3. Step 3: Cross multiply
    366.36x = 505.35 × 235.20
  4. Step 4: Simplify right side
    366.36x = 118,858.32
  5. Step 5: Solve for x
    x = 118,858.32/366.36
  6. Step 6: Final answer
    x = 324.43

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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.