Finding the Fourth Proportional to 290,913.15, 436,369.82 and 80,551.09
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Solution
The fourth proportional to 290,913.15, 436,369.82 and 80,551.09 is: 120,826.66
Step by Step Solution
- Step 1: Write the proportion equation
290,913.15 : 436,369.82 = 80,551.09 : x - Step 2: Convert to fraction form
290,913.15/436,369.82 = 80,551.09/x - Step 3: Cross multiply
290,913.15x = 436,369.82 × 80,551.09 - Step 4: Simplify right side
290,913.15x = 35,150,064,786.81 - Step 5: Solve for x
x = 35,150,064,786.81/290,913.15 - Step 6: Final answer
x = 120,826.66
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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.