Finding the Fourth Proportional to 290,716.87, 436,075.30 and 91,052.88
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Solution
The fourth proportional to 290,716.87, 436,075.30 and 91,052.88 is: 136,579.32
Step by Step Solution
- Step 1: Write the proportion equation
290,716.87 : 436,075.30 = 91,052.88 : x - Step 2: Convert to fraction form
290,716.87/436,075.30 = 91,052.88/x - Step 3: Cross multiply
290,716.87x = 436,075.30 × 91,052.88 - Step 4: Simplify right side
290,716.87x = 39,705,912,075.68 - Step 5: Solve for x
x = 39,705,912,075.68/290,716.87 - Step 6: Final answer
x = 136,579.32
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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.