Finding the Fourth Proportional to 253,584.08, 380,413.20 and 76,105.12
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Solution
The fourth proportional to 253,584.08, 380,413.20 and 76,105.12 is: 114,168.81
Step by Step Solution
- Step 1: Write the proportion equation
253,584.08 : 380,413.20 = 76,105.12 : x - Step 2: Convert to fraction form
253,584.08/380,413.20 = 76,105.12/x - Step 3: Cross multiply
253,584.08x = 380,413.20 × 76,105.12 - Step 4: Simplify right side
253,584.08x = 28,951,392,235.58 - Step 5: Solve for x
x = 28,951,392,235.58/253,584.08 - Step 6: Final answer
x = 114,168.81
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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.