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Finding the Fourth Proportional to 341.81, 471.74 and 194.49

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Solution

The fourth proportional to 341.81, 471.74 and 194.49 is: 268.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.81 : 471.74 = 194.49 : x
  2. Step 2: Convert to fraction form
    341.81/471.74 = 194.49/x
  3. Step 3: Cross multiply
    341.81x = 471.74 × 194.49
  4. Step 4: Simplify right side
    341.81x = 91,748.71
  5. Step 5: Solve for x
    x = 91,748.71/341.81
  6. Step 6: Final answer
    x = 268.42

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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.