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Finding the Fourth Proportional to 343.16, 473.56 and 195.79

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Solution

The fourth proportional to 343.16, 473.56 and 195.79 is: 270.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    343.16 : 473.56 = 195.79 : x
  2. Step 2: Convert to fraction form
    343.16/473.56 = 195.79/x
  3. Step 3: Cross multiply
    343.16x = 473.56 × 195.79
  4. Step 4: Simplify right side
    343.16x = 92,718.31
  5. Step 5: Solve for x
    x = 92,718.31/343.16
  6. Step 6: Final answer
    x = 270.19

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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.