Finding the Fourth Proportional to 207,804.40, 311,860.20 and 83,234.80
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Solution
The fourth proportional to 207,804.40, 311,860.20 and 83,234.80 is: 124,913.72
Step by Step Solution
- Step 1: Write the proportion equation
207,804.40 : 311,860.20 = 83,234.80 : x - Step 2: Convert to fraction form
207,804.40/311,860.20 = 83,234.80/x - Step 3: Cross multiply
207,804.40x = 311,860.20 × 83,234.80 - Step 4: Simplify right side
207,804.40x = 25,957,621,374.96 - Step 5: Solve for x
x = 25,957,621,374.96/207,804.40 - Step 6: Final answer
x = 124,913.72
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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.