Finding the Fourth Proportional to 213,135.44, 294,136.68 and 122,520.80
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Solution
The fourth proportional to 213,135.44, 294,136.68 and 122,520.80 is: 169,084.32
Step by Step Solution
- Step 1: Write the proportion equation
213,135.44 : 294,136.68 = 122,520.80 : x - Step 2: Convert to fraction form
213,135.44/294,136.68 = 122,520.80/x - Step 3: Cross multiply
213,135.44x = 294,136.68 × 122,520.80 - Step 4: Simplify right side
213,135.44x = 36,037,861,342.94 - Step 5: Solve for x
x = 36,037,861,342.94/213,135.44 - Step 6: Final answer
x = 169,084.32
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1.5x scale
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.