Finding the Fourth Proportional to 286.28, 394.96 and 174.19
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Solution
The fourth proportional to 286.28, 394.96 and 174.19 is: 240.31
Step by Step Solution
- Step 1: Write the proportion equation
286.28 : 394.96 = 174.19 : x - Step 2: Convert to fraction form
286.28/394.96 = 174.19/x - Step 3: Cross multiply
286.28x = 394.96 × 174.19 - Step 4: Simplify right side
286.28x = 68,795.24 - Step 5: Solve for x
x = 68,795.24/286.28 - Step 6: Final answer
x = 240.31
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.