Finding the Fourth Proportional to 358.08, 494.25 and 210.75
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Solution
The fourth proportional to 358.08, 494.25 and 210.75 is: 290.89
Step by Step Solution
- Step 1: Write the proportion equation
358.08 : 494.25 = 210.75 : x - Step 2: Convert to fraction form
358.08/494.25 = 210.75/x - Step 3: Cross multiply
358.08x = 494.25 × 210.75 - Step 4: Simplify right side
358.08x = 104,163.19 - Step 5: Solve for x
x = 104,163.19/358.08 - Step 6: Final answer
x = 290.89
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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.