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Finding the Fourth Proportional to 235.73, 324.60 and 213.77

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Solution

The fourth proportional to 235.73, 324.60 and 213.77 is: 294.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.73 : 324.60 = 213.77 : x
  2. Step 2: Convert to fraction form
    235.73/324.60 = 213.77/x
  3. Step 3: Cross multiply
    235.73x = 324.60 × 213.77
  4. Step 4: Simplify right side
    235.73x = 69,389.74
  5. Step 5: Solve for x
    x = 69,389.74/235.73
  6. Step 6: Final answer
    x = 294.36

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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.