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Finding the Fourth Proportional to 303.58, 419.48 and 238.60

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Solution

The fourth proportional to 303.58, 419.48 and 238.60 is: 329.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    303.58 : 419.48 = 238.60 : x
  2. Step 2: Convert to fraction form
    303.58/419.48 = 238.60/x
  3. Step 3: Cross multiply
    303.58x = 419.48 × 238.60
  4. Step 4: Simplify right side
    303.58x = 100,087.93
  5. Step 5: Solve for x
    x = 100,087.93/303.58
  6. Step 6: Final answer
    x = 329.69

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.