Finding the Fourth Proportional to 230,212.63, 317,620.33 and 129,591.19
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Solution
The fourth proportional to 230,212.63, 317,620.33 and 129,591.19 is: 178,794.69
Step by Step Solution
- Step 1: Write the proportion equation
230,212.63 : 317,620.33 = 129,591.19 : x - Step 2: Convert to fraction form
230,212.63/317,620.33 = 129,591.19/x - Step 3: Cross multiply
230,212.63x = 317,620.33 × 129,591.19 - Step 4: Simplify right side
230,212.63x = 41,160,796,532.89 - Step 5: Solve for x
x = 41,160,796,532.89/230,212.63 - Step 6: Final answer
x = 178,794.69
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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.