Finding the Fourth Proportional to 290,912.84, 436,368.54 and 80,550.08
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Solution
The fourth proportional to 290,912.84, 436,368.54 and 80,550.08 is: 120,824.92
Step by Step Solution
- Step 1: Write the proportion equation
290,912.84 : 436,368.54 = 80,550.08 : x - Step 2: Convert to fraction form
290,912.84/436,368.54 = 80,550.08/x - Step 3: Cross multiply
290,912.84x = 436,368.54 × 80,550.08 - Step 4: Simplify right side
290,912.84x = 35,149,520,806.48 - Step 5: Solve for x
x = 35,149,520,806.48/290,912.84 - Step 6: Final answer
x = 120,824.92
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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.