Finding the Fourth Proportional to 253,757.84, 380,872.92 and 129,192.08
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Solution
The fourth proportional to 253,757.84, 380,872.92 and 129,192.08 is: 193,908.35
Step by Step Solution
- Step 1: Write the proportion equation
253,757.84 : 380,872.92 = 129,192.08 : x - Step 2: Convert to fraction form
253,757.84/380,872.92 = 129,192.08/x - Step 3: Cross multiply
253,757.84x = 380,872.92 × 129,192.08 - Step 4: Simplify right side
253,757.84x = 49,205,764,750.47 - Step 5: Solve for x
x = 49,205,764,750.47/253,757.84 - Step 6: Final answer
x = 193,908.35
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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.