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Finding the Fourth Proportional to 453.88, 680.82 and 165.25

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Solution

The fourth proportional to 453.88, 680.82 and 165.25 is: 247.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.88 : 680.82 = 165.25 : x
  2. Step 2: Convert to fraction form
    453.88/680.82 = 165.25/x
  3. Step 3: Cross multiply
    453.88x = 680.82 × 165.25
  4. Step 4: Simplify right side
    453.88x = 112,505.51
  5. Step 5: Solve for x
    x = 112,505.51/453.88
  6. Step 6: Final answer
    x = 247.88

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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.