Finding the Fourth Proportional to 290.69, 435.84 and 193.08
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Solution
The fourth proportional to 290.69, 435.84 and 193.08 is: 289.50
Step by Step Solution
- Step 1: Write the proportion equation
290.69 : 435.84 = 193.08 : x - Step 2: Convert to fraction form
290.69/435.84 = 193.08/x - Step 3: Cross multiply
290.69x = 435.84 × 193.08 - Step 4: Simplify right side
290.69x = 84,151.99 - Step 5: Solve for x
x = 84,151.99/290.69 - Step 6: Final answer
x = 289.50
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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.