Finding the Fourth Proportional to 290.60, 435.97 and 107.99
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Solution
The fourth proportional to 290.60, 435.97 and 107.99 is: 162.01
Step by Step Solution
- Step 1: Write the proportion equation
290.60 : 435.97 = 107.99 : x - Step 2: Convert to fraction form
290.60/435.97 = 107.99/x - Step 3: Cross multiply
290.60x = 435.97 × 107.99 - Step 4: Simplify right side
290.60x = 47,080.40 - Step 5: Solve for x
x = 47,080.40/290.60 - Step 6: Final answer
x = 162.01
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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.