Finding the Fourth Proportional to 286.92, 396.06 and 193.79
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Solution
The fourth proportional to 286.92, 396.06 and 193.79 is: 267.50
Step by Step Solution
- Step 1: Write the proportion equation
286.92 : 396.06 = 193.79 : x - Step 2: Convert to fraction form
286.92/396.06 = 193.79/x - Step 3: Cross multiply
286.92x = 396.06 × 193.79 - Step 4: Simplify right side
286.92x = 76,750.97 - Step 5: Solve for x
x = 76,750.97/286.92 - Step 6: Final answer
x = 267.50
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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.