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Finding the Fourth Proportional to 344.59, 471.87 and 330.82

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Solution

The fourth proportional to 344.59, 471.87 and 330.82 is: 453.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.59 : 471.87 = 330.82 : x
  2. Step 2: Convert to fraction form
    344.59/471.87 = 330.82/x
  3. Step 3: Cross multiply
    344.59x = 471.87 × 330.82
  4. Step 4: Simplify right side
    344.59x = 156,104.03
  5. Step 5: Solve for x
    x = 156,104.03/344.59
  6. Step 6: Final answer
    x = 453.01

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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.