Finding the Fourth Proportional to 361.26, 541.62 and 239.76
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Solution
The fourth proportional to 361.26, 541.62 and 239.76 is: 359.46
Step by Step Solution
- Step 1: Write the proportion equation
361.26 : 541.62 = 239.76 : x - Step 2: Convert to fraction form
361.26/541.62 = 239.76/x - Step 3: Cross multiply
361.26x = 541.62 × 239.76 - Step 4: Simplify right side
361.26x = 129,858.81 - Step 5: Solve for x
x = 129,858.81/361.26 - Step 6: Final answer
x = 359.46
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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.