Finding the Fourth Proportional to 387,738.75, 581,608.33 and 121,520.00
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Solution
The fourth proportional to 387,738.75, 581,608.33 and 121,520.00 is: 182,280.06
Step by Step Solution
- Step 1: Write the proportion equation
387,738.75 : 581,608.33 = 121,520.00 : x - Step 2: Convert to fraction form
387,738.75/581,608.33 = 121,520.00/x - Step 3: Cross multiply
387,738.75x = 581,608.33 × 121,520.00 - Step 4: Simplify right side
387,738.75x = 70,677,040,745.96 - Step 5: Solve for x
x = 70,677,040,745.96/387,738.75 - Step 6: Final answer
x = 182,280.06
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.