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Finding the Fourth Proportional to 450.94, 622.30 and 254.45

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Solution

The fourth proportional to 450.94, 622.30 and 254.45 is: 351.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    450.94 : 622.30 = 254.45 : x
  2. Step 2: Convert to fraction form
    450.94/622.30 = 254.45/x
  3. Step 3: Cross multiply
    450.94x = 622.30 × 254.45
  4. Step 4: Simplify right side
    450.94x = 158,344.24
  5. Step 5: Solve for x
    x = 158,344.24/450.94
  6. Step 6: Final answer
    x = 351.14

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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.