Finding the Fourth Proportional to 361.26, 541.94 and 155.79
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Solution
The fourth proportional to 361.26, 541.94 and 155.79 is: 233.70
Step by Step Solution
- Step 1: Write the proportion equation
361.26 : 541.94 = 155.79 : x - Step 2: Convert to fraction form
361.26/541.94 = 155.79/x - Step 3: Cross multiply
361.26x = 541.94 × 155.79 - Step 4: Simplify right side
361.26x = 84,428.05 - Step 5: Solve for x
x = 84,428.05/361.26 - Step 6: Final answer
x = 233.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.