Finding the Fourth Proportional to 163.93, 226.02 and 138.98
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Solution
The fourth proportional to 163.93, 226.02 and 138.98 is: 191.63
Step by Step Solution
- Step 1: Write the proportion equation
163.93 : 226.02 = 138.98 : x - Step 2: Convert to fraction form
163.93/226.02 = 138.98/x - Step 3: Cross multiply
163.93x = 226.02 × 138.98 - Step 4: Simplify right side
163.93x = 31,412.26 - Step 5: Solve for x
x = 31,412.26/163.93 - Step 6: Final answer
x = 191.63
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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.