Finding the Fourth Proportional to 361.68, 499 and 221.76
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Solution
The fourth proportional to 361.68, 499 and 221.76 is: 305.96
Step by Step Solution
- Step 1: Write the proportion equation
361.68 : 499 = 221.76 : x - Step 2: Convert to fraction form
361.68/499 = 221.76/x - Step 3: Cross multiply
361.68x = 499 × 221.76 - Step 4: Simplify right side
361.68x = 110,658.24 - Step 5: Solve for x
x = 110,658.24/361.68 - Step 6: Final answer
x = 305.96
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