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Finding the Fourth Proportional to 235.56, 324.54 and 186.60

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Solution

The fourth proportional to 235.56, 324.54 and 186.60 is: 257.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.56 : 324.54 = 186.60 : x
  2. Step 2: Convert to fraction form
    235.56/324.54 = 186.60/x
  3. Step 3: Cross multiply
    235.56x = 324.54 × 186.60
  4. Step 4: Simplify right side
    235.56x = 60,559.16
  5. Step 5: Solve for x
    x = 60,559.16/235.56
  6. Step 6: Final answer
    x = 257.09

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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.