Finding the Fourth Proportional to 281.99, 389.14 and 163.94
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Solution
The fourth proportional to 281.99, 389.14 and 163.94 is: 226.22
Step by Step Solution
- Step 1: Write the proportion equation
281.99 : 389.14 = 163.94 : x - Step 2: Convert to fraction form
281.99/389.14 = 163.94/x - Step 3: Cross multiply
281.99x = 389.14 × 163.94 - Step 4: Simplify right side
281.99x = 63,793.26 - Step 5: Solve for x
x = 63,793.26/281.99 - Step 6: Final answer
x = 226.22
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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.