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Finding the Fourth Proportional to 344.71, 475.45 and 228.43

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Solution

The fourth proportional to 344.71, 475.45 and 228.43 is: 315.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.71 : 475.45 = 228.43 : x
  2. Step 2: Convert to fraction form
    344.71/475.45 = 228.43/x
  3. Step 3: Cross multiply
    344.71x = 475.45 × 228.43
  4. Step 4: Simplify right side
    344.71x = 108,607.04
  5. Step 5: Solve for x
    x = 108,607.04/344.71
  6. Step 6: Final answer
    x = 315.07

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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.