Finding the Fourth Proportional to 383,143.09, 528,697.69 and 235,944.55
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Solution
The fourth proportional to 383,143.09, 528,697.69 and 235,944.55 is: 325,578.99
Step by Step Solution
- Step 1: Write the proportion equation
383,143.09 : 528,697.69 = 235,944.55 : x - Step 2: Convert to fraction form
383,143.09/528,697.69 = 235,944.55/x - Step 3: Cross multiply
383,143.09x = 528,697.69 × 235,944.55 - Step 4: Simplify right side
383,143.09x = 124,743,338,553.09 - Step 5: Solve for x
x = 124,743,338,553.09/383,143.09 - Step 6: Final answer
x = 325,578.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.