Finding the Fourth Proportional to 539,757.36, 809,916.20 and 220,143.68
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Solution
The fourth proportional to 539,757.36, 809,916.20 and 220,143.68 is: 330,329.79
Step by Step Solution
- Step 1: Write the proportion equation
539,757.36 : 809,916.20 = 220,143.68 : x - Step 2: Convert to fraction form
539,757.36/809,916.20 = 220,143.68/x - Step 3: Cross multiply
539,757.36x = 809,916.20 × 220,143.68 - Step 4: Simplify right side
539,757.36x = 178,297,932,759.62 - Step 5: Solve for x
x = 178,297,932,759.62/539,757.36 - Step 6: Final answer
x = 330,329.79
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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.