Finding the Fourth Proportional to 290.24, 435.42 and 107.63
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Solution
The fourth proportional to 290.24, 435.42 and 107.63 is: 161.46
Step by Step Solution
- Step 1: Write the proportion equation
290.24 : 435.42 = 107.63 : x - Step 2: Convert to fraction form
290.24/435.42 = 107.63/x - Step 3: Cross multiply
290.24x = 435.42 × 107.63 - Step 4: Simplify right side
290.24x = 46,862.08 - Step 5: Solve for x
x = 46,862.08/290.24 - Step 6: Final answer
x = 161.46
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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.