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Finding the Fourth Proportional to 343.62, 473.85 and 227.22

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Solution

The fourth proportional to 343.62, 473.85 and 227.22 is: 313.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    343.62 : 473.85 = 227.22 : x
  2. Step 2: Convert to fraction form
    343.62/473.85 = 227.22/x
  3. Step 3: Cross multiply
    343.62x = 473.85 × 227.22
  4. Step 4: Simplify right side
    343.62x = 107,668.20
  5. Step 5: Solve for x
    x = 107,668.20/343.62
  6. Step 6: Final answer
    x = 313.34

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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.