Finding the Fourth Proportional to 203,725.20, 305,587.80 and 53,988.60
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Solution
The fourth proportional to 203,725.20, 305,587.80 and 53,988.60 is: 80,982.90
Step by Step Solution
- Step 1: Write the proportion equation
203,725.20 : 305,587.80 = 53,988.60 : x - Step 2: Convert to fraction form
203,725.20/305,587.80 = 53,988.60/x - Step 3: Cross multiply
203,725.20x = 305,587.80 × 53,988.60 - Step 4: Simplify right side
203,725.20x = 16,498,257,499.08 - Step 5: Solve for x
x = 16,498,257,499.08/203,725.20 - Step 6: Final answer
x = 80,982.90
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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.