Finding the Fourth Proportional to 290,847.84, 436,259.07 and 91,163.67
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Solution
The fourth proportional to 290,847.84, 436,259.07 and 91,163.67 is: 136,741.53
Step by Step Solution
- Step 1: Write the proportion equation
290,847.84 : 436,259.07 = 91,163.67 : x - Step 2: Convert to fraction form
290,847.84/436,259.07 = 91,163.67/x - Step 3: Cross multiply
290,847.84x = 436,259.07 × 91,163.67 - Step 4: Simplify right side
290,847.84x = 39,770,977,891.99 - Step 5: Solve for x
x = 39,770,977,891.99/290,847.84 - Step 6: Final answer
x = 136,741.53
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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.