Finding the Fourth Proportional to 276,220.68, 381,195.92 and 155,367.60
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Solution
The fourth proportional to 276,220.68, 381,195.92 and 155,367.60 is: 214,413.69
Step by Step Solution
- Step 1: Write the proportion equation
276,220.68 : 381,195.92 = 155,367.60 : x - Step 2: Convert to fraction form
276,220.68/381,195.92 = 155,367.60/x - Step 3: Cross multiply
276,220.68x = 381,195.92 × 155,367.60 - Step 4: Simplify right side
276,220.68x = 59,225,495,220.19 - Step 5: Solve for x
x = 59,225,495,220.19/276,220.68 - Step 6: Final answer
x = 214,413.69
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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.