Finding the Fourth Proportional to 290,716.53, 435,630.75 and 122,144.70
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Solution
The fourth proportional to 290,716.53, 435,630.75 and 122,144.70 is: 183,030.48
Step by Step Solution
- Step 1: Write the proportion equation
290,716.53 : 435,630.75 = 122,144.70 : x - Step 2: Convert to fraction form
290,716.53/435,630.75 = 122,144.70/x - Step 3: Cross multiply
290,716.53x = 435,630.75 × 122,144.70 - Step 4: Simplify right side
290,716.53x = 53,209,987,269.53 - Step 5: Solve for x
x = 53,209,987,269.53/290,716.53 - Step 6: Final answer
x = 183,030.48
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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.