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Finding the Fourth Proportional to 238.50, 359.58 and 190.98

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Solution

The fourth proportional to 238.50, 359.58 and 190.98 is: 287.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    238.50 : 359.58 = 190.98 : x
  2. Step 2: Convert to fraction form
    238.50/359.58 = 190.98/x
  3. Step 3: Cross multiply
    238.50x = 359.58 × 190.98
  4. Step 4: Simplify right side
    238.50x = 68,672.59
  5. Step 5: Solve for x
    x = 68,672.59/238.50
  6. Step 6: Final answer
    x = 287.94

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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.