Finding the Fourth Proportional to 276,793.22, 381,975.81 and 155,935.96
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Solution
The fourth proportional to 276,793.22, 381,975.81 and 155,935.96 is: 215,192.28
Step by Step Solution
- Step 1: Write the proportion equation
276,793.22 : 381,975.81 = 155,935.96 : x - Step 2: Convert to fraction form
276,793.22/381,975.81 = 155,935.96/x - Step 3: Cross multiply
276,793.22x = 381,975.81 × 155,935.96 - Step 4: Simplify right side
276,793.22x = 59,563,764,629.13 - Step 5: Solve for x
x = 59,563,764,629.13/276,793.22 - Step 6: Final answer
x = 215,192.28
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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.