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Finding the Fourth Proportional to 341.10, 470.75 and 193.78

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Solution

The fourth proportional to 341.10, 470.75 and 193.78 is: 267.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.10 : 470.75 = 193.78 : x
  2. Step 2: Convert to fraction form
    341.10/470.75 = 193.78/x
  3. Step 3: Cross multiply
    341.10x = 470.75 × 193.78
  4. Step 4: Simplify right side
    341.10x = 91,220.97
  5. Step 5: Solve for x
    x = 91,220.97/341.10
  6. Step 6: Final answer
    x = 267.43

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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.