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Finding the Fourth Proportional to 227.34, 342.66 and 203.85

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Solution

The fourth proportional to 227.34, 342.66 and 203.85 is: 307.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.34 : 342.66 = 203.85 : x
  2. Step 2: Convert to fraction form
    227.34/342.66 = 203.85/x
  3. Step 3: Cross multiply
    227.34x = 342.66 × 203.85
  4. Step 4: Simplify right side
    227.34x = 69,851.24
  5. Step 5: Solve for x
    x = 69,851.24/227.34
  6. Step 6: Final answer
    x = 307.25

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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.