Finding the Fourth Proportional to 194.94, 268.99 and 121.23
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Solution
The fourth proportional to 194.94, 268.99 and 121.23 is: 167.28
Step by Step Solution
- Step 1: Write the proportion equation
194.94 : 268.99 = 121.23 : x - Step 2: Convert to fraction form
194.94/268.99 = 121.23/x - Step 3: Cross multiply
194.94x = 268.99 × 121.23 - Step 4: Simplify right side
194.94x = 32,609.35 - Step 5: Solve for x
x = 32,609.35/194.94 - Step 6: Final answer
x = 167.28
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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.