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Finding the Fourth Proportional to 457.37, 685.73 and 222.97

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Solution

The fourth proportional to 457.37, 685.73 and 222.97 is: 334.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    457.37 : 685.73 = 222.97 : x
  2. Step 2: Convert to fraction form
    457.37/685.73 = 222.97/x
  3. Step 3: Cross multiply
    457.37x = 685.73 × 222.97
  4. Step 4: Simplify right side
    457.37x = 152,896.06
  5. Step 5: Solve for x
    x = 152,896.06/457.37
  6. Step 6: Final answer
    x = 334.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.