Finding the Fourth Proportional to 203,690.40, 305,417.18 and 136,299.44
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Solution
The fourth proportional to 203,690.40, 305,417.18 and 136,299.44 is: 204,369.92
Step by Step Solution
- Step 1: Write the proportion equation
203,690.40 : 305,417.18 = 136,299.44 : x - Step 2: Convert to fraction form
203,690.40/305,417.18 = 136,299.44/x - Step 3: Cross multiply
203,690.40x = 305,417.18 × 136,299.44 - Step 4: Simplify right side
203,690.40x = 41,628,190,600.38 - Step 5: Solve for x
x = 41,628,190,600.38/203,690.40 - Step 6: Final answer
x = 204,369.92
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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.