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Finding the Fourth Proportional to 343.94, 471.28 and 340.76

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Solution

The fourth proportional to 343.94, 471.28 and 340.76 is: 466.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    343.94 : 471.28 = 340.76 : x
  2. Step 2: Convert to fraction form
    343.94/471.28 = 340.76/x
  3. Step 3: Cross multiply
    343.94x = 471.28 × 340.76
  4. Step 4: Simplify right side
    343.94x = 160,593.37
  5. Step 5: Solve for x
    x = 160,593.37/343.94
  6. Step 6: Final answer
    x = 466.92

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.