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Finding the Fourth Proportional to 343.43, 473.94 and 188.18

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Solution

The fourth proportional to 343.43, 473.94 and 188.18 is: 259.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    343.43 : 473.94 = 188.18 : x
  2. Step 2: Convert to fraction form
    343.43/473.94 = 188.18/x
  3. Step 3: Cross multiply
    343.43x = 473.94 × 188.18
  4. Step 4: Simplify right side
    343.43x = 89,183.66
  5. Step 5: Solve for x
    x = 89,183.66/343.43
  6. Step 6: Final answer
    x = 259.69

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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.