Finding the Fourth Proportional to 358.44, 494.42 and 303.09
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Solution
The fourth proportional to 358.44, 494.42 and 303.09 is: 418.07
Step by Step Solution
- Step 1: Write the proportion equation
358.44 : 494.42 = 303.09 : x - Step 2: Convert to fraction form
358.44/494.42 = 303.09/x - Step 3: Cross multiply
358.44x = 494.42 × 303.09 - Step 4: Simplify right side
358.44x = 149,852.24 - Step 5: Solve for x
x = 149,852.24/358.44 - Step 6: Final answer
x = 418.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.