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Finding the Fourth Proportional to 453.97, 679.72 and 350.39

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Solution

The fourth proportional to 453.97, 679.72 and 350.39 is: 524.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.97 : 679.72 = 350.39 : x
  2. Step 2: Convert to fraction form
    453.97/679.72 = 350.39/x
  3. Step 3: Cross multiply
    453.97x = 679.72 × 350.39
  4. Step 4: Simplify right side
    453.97x = 238,167.09
  5. Step 5: Solve for x
    x = 238,167.09/453.97
  6. Step 6: Final answer
    x = 524.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.