Finding the Fourth Proportional to 221.99, 306.25 and 134.68
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Solution
The fourth proportional to 221.99, 306.25 and 134.68 is: 185.80
Step by Step Solution
- Step 1: Write the proportion equation
221.99 : 306.25 = 134.68 : x - Step 2: Convert to fraction form
221.99/306.25 = 134.68/x - Step 3: Cross multiply
221.99x = 306.25 × 134.68 - Step 4: Simplify right side
221.99x = 41,245.75 - Step 5: Solve for x
x = 41,245.75/221.99 - Step 6: Final answer
x = 185.80
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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.