Finding the Fourth Proportional to 252,762.75, 379,435.74 and 128,366.19
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Solution
The fourth proportional to 252,762.75, 379,435.74 and 128,366.19 is: 192,697.38
Step by Step Solution
- Step 1: Write the proportion equation
252,762.75 : 379,435.74 = 128,366.19 : x - Step 2: Convert to fraction form
252,762.75/379,435.74 = 128,366.19/x - Step 3: Cross multiply
252,762.75x = 379,435.74 × 128,366.19 - Step 4: Simplify right side
252,762.75x = 48,706,720,293.63 - Step 5: Solve for x
x = 48,706,720,293.63/252,762.75 - Step 6: Final answer
x = 192,697.38
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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.