Finding the Fourth Proportional to 128,251.05, 192,376.62 and 33,480.96
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Solution
The fourth proportional to 128,251.05, 192,376.62 and 33,480.96 is: 50,221.45
Step by Step Solution
- Step 1: Write the proportion equation
128,251.05 : 192,376.62 = 33,480.96 : x - Step 2: Convert to fraction form
128,251.05/192,376.62 = 33,480.96/x - Step 3: Cross multiply
128,251.05x = 192,376.62 × 33,480.96 - Step 4: Simplify right side
128,251.05x = 6,440,953,919.16 - Step 5: Solve for x
x = 6,440,953,919.16/128,251.05 - Step 6: Final answer
x = 50,221.45
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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.