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Finding the Fourth Proportional to 453.97, 681.05 and 161.44

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Solution

The fourth proportional to 453.97, 681.05 and 161.44 is: 242.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.97 : 681.05 = 161.44 : x
  2. Step 2: Convert to fraction form
    453.97/681.05 = 161.44/x
  3. Step 3: Cross multiply
    453.97x = 681.05 × 161.44
  4. Step 4: Simplify right side
    453.97x = 109,950.34
  5. Step 5: Solve for x
    x = 109,950.34/453.97
  6. Step 6: Final answer
    x = 242.20

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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.