Finding the Fourth Proportional to 161.18, 222.08 and 117.44
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Solution
The fourth proportional to 161.18, 222.08 and 117.44 is: 161.81
Step by Step Solution
- Step 1: Write the proportion equation
161.18 : 222.08 = 117.44 : x - Step 2: Convert to fraction form
161.18/222.08 = 117.44/x - Step 3: Cross multiply
161.18x = 222.08 × 117.44 - Step 4: Simplify right side
161.18x = 26,081.08 - Step 5: Solve for x
x = 26,081.08/161.18 - Step 6: Final answer
x = 161.81
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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.