Finding the Fourth Proportional to 361.16, 541.41 and 129.99
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Solution
The fourth proportional to 361.16, 541.41 and 129.99 is: 194.87
Step by Step Solution
- Step 1: Write the proportion equation
361.16 : 541.41 = 129.99 : x - Step 2: Convert to fraction form
361.16/541.41 = 129.99/x - Step 3: Cross multiply
361.16x = 541.41 × 129.99 - Step 4: Simplify right side
361.16x = 70,377.24 - Step 5: Solve for x
x = 70,377.24/361.16 - Step 6: Final answer
x = 194.87
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.