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Finding the Fourth Proportional to 341.79, 471.71 and 194.45

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Solution

The fourth proportional to 341.79, 471.71 and 194.45 is: 268.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.79 : 471.71 = 194.45 : x
  2. Step 2: Convert to fraction form
    341.79/471.71 = 194.45/x
  3. Step 3: Cross multiply
    341.79x = 471.71 × 194.45
  4. Step 4: Simplify right side
    341.79x = 91,720.68
  5. Step 5: Solve for x
    x = 91,720.68/341.79
  6. Step 6: Final answer
    x = 268.35

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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.