Finding the Fourth Proportional to 203,860.20, 305,790.30 and 161,869.80
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Solution
The fourth proportional to 203,860.20, 305,790.30 and 161,869.80 is: 242,804.70
Step by Step Solution
- Step 1: Write the proportion equation
203,860.20 : 305,790.30 = 161,869.80 : x - Step 2: Convert to fraction form
203,860.20/305,790.30 = 161,869.80/x - Step 3: Cross multiply
203,860.20x = 305,790.30 × 161,869.80 - Step 4: Simplify right side
203,860.20x = 49,498,214,702.94 - Step 5: Solve for x
x = 49,498,214,702.94/203,860.20 - Step 6: Final answer
x = 242,804.70
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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.