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Finding the Fourth Proportional to 450.83, 622.18 and 293.63

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Solution

The fourth proportional to 450.83, 622.18 and 293.63 is: 405.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    450.83 : 622.18 = 293.63 : x
  2. Step 2: Convert to fraction form
    450.83/622.18 = 293.63/x
  3. Step 3: Cross multiply
    450.83x = 622.18 × 293.63
  4. Step 4: Simplify right side
    450.83x = 182,687.97
  5. Step 5: Solve for x
    x = 182,687.97/450.83
  6. Step 6: Final answer
    x = 405.22

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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.