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Finding the Fourth Proportional to 314.09, 433.37 and 196.08

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Solution

The fourth proportional to 314.09, 433.37 and 196.08 is: 270.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    314.09 : 433.37 = 196.08 : x
  2. Step 2: Convert to fraction form
    314.09/433.37 = 196.08/x
  3. Step 3: Cross multiply
    314.09x = 433.37 × 196.08
  4. Step 4: Simplify right side
    314.09x = 84,974.21
  5. Step 5: Solve for x
    x = 84,974.21/314.09
  6. Step 6: Final answer
    x = 270.54

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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.