Finding the Fourth Proportional to 664.21, 996.45 and 201.94
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Solution
The fourth proportional to 664.21, 996.45 and 201.94 is: 302.95
Step by Step Solution
- Step 1: Write the proportion equation
664.21 : 996.45 = 201.94 : x - Step 2: Convert to fraction form
664.21/996.45 = 201.94/x - Step 3: Cross multiply
664.21x = 996.45 × 201.94 - Step 4: Simplify right side
664.21x = 201,218.13 - Step 5: Solve for x
x = 201,218.13/664.21 - Step 6: Final answer
x = 302.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.