Finding the Fourth Proportional to 203,695.80, 305,543.70 and 133,615.80
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Solution
The fourth proportional to 203,695.80, 305,543.70 and 133,615.80 is: 200,423.70
Step by Step Solution
- Step 1: Write the proportion equation
203,695.80 : 305,543.70 = 133,615.80 : x - Step 2: Convert to fraction form
203,695.80/305,543.70 = 133,615.80/x - Step 3: Cross multiply
203,695.80x = 305,543.70 × 133,615.80 - Step 4: Simplify right side
203,695.80x = 40,825,465,910.46 - Step 5: Solve for x
x = 40,825,465,910.46/203,695.80 - Step 6: Final answer
x = 200,423.70
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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.