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Finding the Fourth Proportional to 227.48, 340.80 and 173.36

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Solution

The fourth proportional to 227.48, 340.80 and 173.36 is: 259.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.48 : 340.80 = 173.36 : x
  2. Step 2: Convert to fraction form
    227.48/340.80 = 173.36/x
  3. Step 3: Cross multiply
    227.48x = 340.80 × 173.36
  4. Step 4: Simplify right side
    227.48x = 59,081.09
  5. Step 5: Solve for x
    x = 59,081.09/227.48
  6. Step 6: Final answer
    x = 259.72

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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.