Finding the Fourth Proportional to 207,281.20, 311,104.06 and 122,935.90
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Solution
The fourth proportional to 207,281.20, 311,104.06 and 122,935.90 is: 184,511.95
Step by Step Solution
- Step 1: Write the proportion equation
207,281.20 : 311,104.06 = 122,935.90 : x - Step 2: Convert to fraction form
207,281.20/311,104.06 = 122,935.90/x - Step 3: Cross multiply
207,281.20x = 311,104.06 × 122,935.90 - Step 4: Simplify right side
207,281.20x = 38,245,857,609.75 - Step 5: Solve for x
x = 38,245,857,609.75/207,281.20 - Step 6: Final answer
x = 184,511.95
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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.