Finding the Fourth Proportional to 203,902.35, 305,853.53 and 133,043.55
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Solution
The fourth proportional to 203,902.35, 305,853.53 and 133,043.55 is: 199,565.33
Step by Step Solution
- Step 1: Write the proportion equation
203,902.35 : 305,853.53 = 133,043.55 : x - Step 2: Convert to fraction form
203,902.35/305,853.53 = 133,043.55/x - Step 3: Cross multiply
203,902.35x = 305,853.53 × 133,043.55 - Step 4: Simplify right side
203,902.35x = 40,691,839,411.23 - Step 5: Solve for x
x = 40,691,839,411.23/203,902.35 - Step 6: Final answer
x = 199,565.33
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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.