Finding the Fourth Proportional to 361.96, 542.94 and 130.88
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Solution
The fourth proportional to 361.96, 542.94 and 130.88 is: 196.32
Step by Step Solution
- Step 1: Write the proportion equation
361.96 : 542.94 = 130.88 : x - Step 2: Convert to fraction form
361.96/542.94 = 130.88/x - Step 3: Cross multiply
361.96x = 542.94 × 130.88 - Step 4: Simplify right side
361.96x = 71,059.99 - Step 5: Solve for x
x = 71,059.99/361.96 - Step 6: Final answer
x = 196.32
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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.