Finding the Fourth Proportional to 398.88, 550.08 and 343.68
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Solution
The fourth proportional to 398.88, 550.08 and 343.68 is: 473.96
Step by Step Solution
- Step 1: Write the proportion equation
398.88 : 550.08 = 343.68 : x - Step 2: Convert to fraction form
398.88/550.08 = 343.68/x - Step 3: Cross multiply
398.88x = 550.08 × 343.68 - Step 4: Simplify right side
398.88x = 189,051.49 - Step 5: Solve for x
x = 189,051.49/398.88 - Step 6: Final answer
x = 473.96
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