Finding the Fourth Proportional to 303,992.11, 419,509.56 and 183,138.49
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Solution
The fourth proportional to 303,992.11, 419,509.56 and 183,138.49 is: 252,731.39
Step by Step Solution
- Step 1: Write the proportion equation
303,992.11 : 419,509.56 = 183,138.49 : x - Step 2: Convert to fraction form
303,992.11/419,509.56 = 183,138.49/x - Step 3: Cross multiply
303,992.11x = 419,509.56 × 183,138.49 - Step 4: Simplify right side
303,992.11x = 76,828,347,358.96 - Step 5: Solve for x
x = 76,828,347,358.96/303,992.11 - Step 6: Final answer
x = 252,731.39
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1.5x scale
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.