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Finding the Fourth Proportional to 341.82, 471.72 and 186.57

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Solution

The fourth proportional to 341.82, 471.72 and 186.57 is: 257.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.82 : 471.72 = 186.57 : x
  2. Step 2: Convert to fraction form
    341.82/471.72 = 186.57/x
  3. Step 3: Cross multiply
    341.82x = 471.72 × 186.57
  4. Step 4: Simplify right side
    341.82x = 88,008.80
  5. Step 5: Solve for x
    x = 88,008.80/341.82
  6. Step 6: Final answer
    x = 257.47

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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.