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Finding the Fourth Proportional to 232.95, 347.60 and 231.60

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Solution

The fourth proportional to 232.95, 347.60 and 231.60 is: 345.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    232.95 : 347.60 = 231.60 : x
  2. Step 2: Convert to fraction form
    232.95/347.60 = 231.60/x
  3. Step 3: Cross multiply
    232.95x = 347.60 × 231.60
  4. Step 4: Simplify right side
    232.95x = 80,504.16
  5. Step 5: Solve for x
    x = 80,504.16/232.95
  6. Step 6: Final answer
    x = 345.59

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.