Finding the Fourth Proportional to 361.08, 539.01 and 328.68
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Solution
The fourth proportional to 361.08, 539.01 and 328.68 is: 490.64
Step by Step Solution
- Step 1: Write the proportion equation
361.08 : 539.01 = 328.68 : x - Step 2: Convert to fraction form
361.08/539.01 = 328.68/x - Step 3: Cross multiply
361.08x = 539.01 × 328.68 - Step 4: Simplify right side
361.08x = 177,161.81 - Step 5: Solve for x
x = 177,161.81/361.08 - Step 6: Final answer
x = 490.64
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.