Finding the Fourth Proportional to 209,197.40, 288,692.78 and 113,703.84
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Solution
The fourth proportional to 209,197.40, 288,692.78 and 113,703.84 is: 156,911.50
Step by Step Solution
- Step 1: Write the proportion equation
209,197.40 : 288,692.78 = 113,703.84 : x - Step 2: Convert to fraction form
209,197.40/288,692.78 = 113,703.84/x - Step 3: Cross multiply
209,197.40x = 288,692.78 × 113,703.84 - Step 4: Simplify right side
209,197.40x = 32,825,477,097.76 - Step 5: Solve for x
x = 32,825,477,097.76/209,197.40 - Step 6: Final answer
x = 156,911.50
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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.