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Finding the Fourth Proportional to 343.21, 473.67 and 195.84

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Solution

The fourth proportional to 343.21, 473.67 and 195.84 is: 270.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    343.21 : 473.67 = 195.84 : x
  2. Step 2: Convert to fraction form
    343.21/473.67 = 195.84/x
  3. Step 3: Cross multiply
    343.21x = 473.67 × 195.84
  4. Step 4: Simplify right side
    343.21x = 92,763.53
  5. Step 5: Solve for x
    x = 92,763.53/343.21
  6. Step 6: Final answer
    x = 270.28

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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.