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Finding the Fourth Proportional to 263.40, 362.94 and 222.03

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Solution

The fourth proportional to 263.40, 362.94 and 222.03 is: 305.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.40 : 362.94 = 222.03 : x
  2. Step 2: Convert to fraction form
    263.40/362.94 = 222.03/x
  3. Step 3: Cross multiply
    263.40x = 362.94 × 222.03
  4. Step 4: Simplify right side
    263.40x = 80,583.57
  5. Step 5: Solve for x
    x = 80,583.57/263.40
  6. Step 6: Final answer
    x = 305.94

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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.