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Finding the Fourth Proportional to 341.91, 471.42 and 243.50

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Solution

The fourth proportional to 341.91, 471.42 and 243.50 is: 335.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.91 : 471.42 = 243.50 : x
  2. Step 2: Convert to fraction form
    341.91/471.42 = 243.50/x
  3. Step 3: Cross multiply
    341.91x = 471.42 × 243.50
  4. Step 4: Simplify right side
    341.91x = 114,790.77
  5. Step 5: Solve for x
    x = 114,790.77/341.91
  6. Step 6: Final answer
    x = 335.73

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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.