Finding the Fourth Proportional to 358.36, 537.42 and 163.20
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Solution
The fourth proportional to 358.36, 537.42 and 163.20 is: 244.75
Step by Step Solution
- Step 1: Write the proportion equation
358.36 : 537.42 = 163.20 : x - Step 2: Convert to fraction form
358.36/537.42 = 163.20/x - Step 3: Cross multiply
358.36x = 537.42 × 163.20 - Step 4: Simplify right side
358.36x = 87,706.94 - Step 5: Solve for x
x = 87,706.94/358.36 - Step 6: Final answer
x = 244.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.