Finding the Fourth Proportional to 207,980.33, 311,970.51 and 67,738.96
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Solution
The fourth proportional to 207,980.33, 311,970.51 and 67,738.96 is: 101,608.44
Step by Step Solution
- Step 1: Write the proportion equation
207,980.33 : 311,970.51 = 67,738.96 : x - Step 2: Convert to fraction form
207,980.33/311,970.51 = 67,738.96/x - Step 3: Cross multiply
207,980.33x = 311,970.51 × 67,738.96 - Step 4: Simplify right side
207,980.33x = 21,132,557,601.13 - Step 5: Solve for x
x = 21,132,557,601.13/207,980.33 - Step 6: Final answer
x = 101,608.44
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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.