Finding the Fourth Proportional to 286.11, 394.60 and 247.23
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Solution
The fourth proportional to 286.11, 394.60 and 247.23 is: 340.98
Step by Step Solution
- Step 1: Write the proportion equation
286.11 : 394.60 = 247.23 : x - Step 2: Convert to fraction form
286.11/394.60 = 247.23/x - Step 3: Cross multiply
286.11x = 394.60 × 247.23 - Step 4: Simplify right side
286.11x = 97,556.96 - Step 5: Solve for x
x = 97,556.96/286.11 - Step 6: Final answer
x = 340.98
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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.