Finding the Fourth Proportional to 361.14, 541.65 and 129.99
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Solution
The fourth proportional to 361.14, 541.65 and 129.99 is: 194.96
Step by Step Solution
- Step 1: Write the proportion equation
361.14 : 541.65 = 129.99 : x - Step 2: Convert to fraction form
361.14/541.65 = 129.99/x - Step 3: Cross multiply
361.14x = 541.65 × 129.99 - Step 4: Simplify right side
361.14x = 70,409.08 - Step 5: Solve for x
x = 70,409.08/361.14 - Step 6: Final answer
x = 194.96
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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.