Finding the Fourth Proportional to 207,497.70, 311,246.55 and 198,749.70
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Solution
The fourth proportional to 207,497.70, 311,246.55 and 198,749.70 is: 298,124.55
Step by Step Solution
- Step 1: Write the proportion equation
207,497.70 : 311,246.55 = 198,749.70 : x - Step 2: Convert to fraction form
207,497.70/311,246.55 = 198,749.70/x - Step 3: Cross multiply
207,497.70x = 311,246.55 × 198,749.70 - Step 4: Simplify right side
207,497.70x = 61,860,158,438.54 - Step 5: Solve for x
x = 61,860,158,438.54/207,497.70 - Step 6: Final answer
x = 298,124.55
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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.