Finding the Fourth Proportional to 326.74, 450.91 and 193.99
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Solution
The fourth proportional to 326.74, 450.91 and 193.99 is: 267.71
Step by Step Solution
- Step 1: Write the proportion equation
326.74 : 450.91 = 193.99 : x - Step 2: Convert to fraction form
326.74/450.91 = 193.99/x - Step 3: Cross multiply
326.74x = 450.91 × 193.99 - Step 4: Simplify right side
326.74x = 87,472.03 - Step 5: Solve for x
x = 87,472.03/326.74 - Step 6: Final answer
x = 267.71
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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.