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Finding the Fourth Proportional to 450.44, 621.64 and 263.92

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Solution

The fourth proportional to 450.44, 621.64 and 263.92 is: 364.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    450.44 : 621.64 = 263.92 : x
  2. Step 2: Convert to fraction form
    450.44/621.64 = 263.92/x
  3. Step 3: Cross multiply
    450.44x = 621.64 × 263.92
  4. Step 4: Simplify right side
    450.44x = 164,063.23
  5. Step 5: Solve for x
    x = 164,063.23/450.44
  6. Step 6: Final answer
    x = 364.23

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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.