Finding the Fourth Proportional to 203,639.08, 305,560.42 and 91,399.54
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Solution
The fourth proportional to 203,639.08, 305,560.42 and 91,399.54 is: 137,145.00
Step by Step Solution
- Step 1: Write the proportion equation
203,639.08 : 305,560.42 = 91,399.54 : x - Step 2: Convert to fraction form
203,639.08/305,560.42 = 91,399.54/x - Step 3: Cross multiply
203,639.08x = 305,560.42 × 91,399.54 - Step 4: Simplify right side
203,639.08x = 27,928,081,830.21 - Step 5: Solve for x
x = 27,928,081,830.21/203,639.08 - Step 6: Final answer
x = 137,145.00
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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.