Finding the Fourth Proportional to 231,620.96, 347,491.34 and 135,639.23
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Solution
The fourth proportional to 231,620.96, 347,491.34 and 135,639.23 is: 203,493.92
Step by Step Solution
- Step 1: Write the proportion equation
231,620.96 : 347,491.34 = 135,639.23 : x - Step 2: Convert to fraction form
231,620.96/347,491.34 = 135,639.23/x - Step 3: Cross multiply
231,620.96x = 347,491.34 × 135,639.23 - Step 4: Simplify right side
231,620.96x = 47,133,456,051.81 - Step 5: Solve for x
x = 47,133,456,051.81/231,620.96 - Step 6: Final answer
x = 203,493.92
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1.5x scale
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.