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Finding the Fourth Proportional to 227.90, 314.24 and 203.30

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Solution

The fourth proportional to 227.90, 314.24 and 203.30 is: 280.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.90 : 314.24 = 203.30 : x
  2. Step 2: Convert to fraction form
    227.90/314.24 = 203.30/x
  3. Step 3: Cross multiply
    227.90x = 314.24 × 203.30
  4. Step 4: Simplify right side
    227.90x = 63,884.99
  5. Step 5: Solve for x
    x = 63,884.99/227.90
  6. Step 6: Final answer
    x = 280.32

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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.