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Finding the Fourth Proportional to 227.80, 342.06 and 202.18

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Solution

The fourth proportional to 227.80, 342.06 and 202.18 is: 303.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.80 : 342.06 = 202.18 : x
  2. Step 2: Convert to fraction form
    227.80/342.06 = 202.18/x
  3. Step 3: Cross multiply
    227.80x = 342.06 × 202.18
  4. Step 4: Simplify right side
    227.80x = 69,157.69
  5. Step 5: Solve for x
    x = 69,157.69/227.80
  6. Step 6: Final answer
    x = 303.59

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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.