Finding the Fourth Proportional to 326,737.80, 490,106.70 and 274,249.80
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Solution
The fourth proportional to 326,737.80, 490,106.70 and 274,249.80 is: 411,374.70
Step by Step Solution
- Step 1: Write the proportion equation
326,737.80 : 490,106.70 = 274,249.80 : x - Step 2: Convert to fraction form
326,737.80/490,106.70 = 274,249.80/x - Step 3: Cross multiply
326,737.80x = 490,106.70 × 274,249.80 - Step 4: Simplify right side
326,737.80x = 134,411,664,453.66 - Step 5: Solve for x
x = 134,411,664,453.66/326,737.80 - Step 6: Final answer
x = 411,374.70
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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.