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Finding the Fourth Proportional to 341.71, 471.61 and 194.40

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Solution

The fourth proportional to 341.71, 471.61 and 194.40 is: 268.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.71 : 471.61 = 194.40 : x
  2. Step 2: Convert to fraction form
    341.71/471.61 = 194.40/x
  3. Step 3: Cross multiply
    341.71x = 471.61 × 194.40
  4. Step 4: Simplify right side
    341.71x = 91,680.98
  5. Step 5: Solve for x
    x = 91,680.98/341.71
  6. Step 6: Final answer
    x = 268.30

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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.