Finding the Fourth Proportional to 361.18, 540.84 and 198.68
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Solution
The fourth proportional to 361.18, 540.84 and 198.68 is: 297.51
Step by Step Solution
- Step 1: Write the proportion equation
361.18 : 540.84 = 198.68 : x - Step 2: Convert to fraction form
361.18/540.84 = 198.68/x - Step 3: Cross multiply
361.18x = 540.84 × 198.68 - Step 4: Simplify right side
361.18x = 107,454.09 - Step 5: Solve for x
x = 107,454.09/361.18 - Step 6: Final answer
x = 297.51
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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.