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Finding the Fourth Proportional to 453.94, 626.43 and 323.17

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Solution

The fourth proportional to 453.94, 626.43 and 323.17 is: 445.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.94 : 626.43 = 323.17 : x
  2. Step 2: Convert to fraction form
    453.94/626.43 = 323.17/x
  3. Step 3: Cross multiply
    453.94x = 626.43 × 323.17
  4. Step 4: Simplify right side
    453.94x = 202,446.55
  5. Step 5: Solve for x
    x = 202,446.55/453.94
  6. Step 6: Final answer
    x = 445.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.