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Finding the Fourth Proportional to 227.90, 339.81 and 227.59

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Solution

The fourth proportional to 227.90, 339.81 and 227.59 is: 339.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.90 : 339.81 = 227.59 : x
  2. Step 2: Convert to fraction form
    227.90/339.81 = 227.59/x
  3. Step 3: Cross multiply
    227.90x = 339.81 × 227.59
  4. Step 4: Simplify right side
    227.90x = 77,337.36
  5. Step 5: Solve for x
    x = 77,337.36/227.90
  6. Step 6: Final answer
    x = 339.35

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.