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Finding the Fourth Proportional to 341.79, 471.67 and 186.54

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Solution

The fourth proportional to 341.79, 471.67 and 186.54 is: 257.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.79 : 471.67 = 186.54 : x
  2. Step 2: Convert to fraction form
    341.79/471.67 = 186.54/x
  3. Step 3: Cross multiply
    341.79x = 471.67 × 186.54
  4. Step 4: Simplify right side
    341.79x = 87,982.96
  5. Step 5: Solve for x
    x = 87,982.96/341.79
  6. Step 6: Final answer
    x = 257.42

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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.