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Finding the Fourth Proportional to 222.73, 335.77 and 207.87

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Solution

The fourth proportional to 222.73, 335.77 and 207.87 is: 313.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    222.73 : 335.77 = 207.87 : x
  2. Step 2: Convert to fraction form
    222.73/335.77 = 207.87/x
  3. Step 3: Cross multiply
    222.73x = 335.77 × 207.87
  4. Step 4: Simplify right side
    222.73x = 69,796.51
  5. Step 5: Solve for x
    x = 69,796.51/222.73
  6. Step 6: Final answer
    x = 313.37

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.