Finding the Fourth Proportional to 286.04, 394.62 and 161.67
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Solution
The fourth proportional to 286.04, 394.62 and 161.67 is: 223.03
Step by Step Solution
- Step 1: Write the proportion equation
286.04 : 394.62 = 161.67 : x - Step 2: Convert to fraction form
286.04/394.62 = 161.67/x - Step 3: Cross multiply
286.04x = 394.62 × 161.67 - Step 4: Simplify right side
286.04x = 63,796.24 - Step 5: Solve for x
x = 63,796.24/286.04 - Step 6: Final answer
x = 223.03
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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.