Finding the Fourth Proportional to 209,236.21, 288,777.48 and 127,611.81
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Solution
The fourth proportional to 209,236.21, 288,777.48 and 127,611.81 is: 176,123.52
Step by Step Solution
- Step 1: Write the proportion equation
209,236.21 : 288,777.48 = 127,611.81 : x - Step 2: Convert to fraction form
209,236.21/288,777.48 = 127,611.81/x - Step 3: Cross multiply
209,236.21x = 288,777.48 × 127,611.81 - Step 4: Simplify right side
209,236.21x = 36,851,416,910.04 - Step 5: Solve for x
x = 36,851,416,910.04/209,236.21 - Step 6: Final answer
x = 176,123.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.