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Finding the Fourth Proportional to 341.72, 471.66 and 223.84

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Solution

The fourth proportional to 341.72, 471.66 and 223.84 is: 308.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.72 : 471.66 = 223.84 : x
  2. Step 2: Convert to fraction form
    341.72/471.66 = 223.84/x
  3. Step 3: Cross multiply
    341.72x = 471.66 × 223.84
  4. Step 4: Simplify right side
    341.72x = 105,576.37
  5. Step 5: Solve for x
    x = 105,576.37/341.72
  6. Step 6: Final answer
    x = 308.96

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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.