Finding the Fourth Proportional to 203,429.80, 304,934.10 and 91,163.80
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Solution
The fourth proportional to 203,429.80, 304,934.10 and 91,163.80 is: 136,651.32
Step by Step Solution
- Step 1: Write the proportion equation
203,429.80 : 304,934.10 = 91,163.80 : x - Step 2: Convert to fraction form
203,429.80/304,934.10 = 91,163.80/x - Step 3: Cross multiply
203,429.80x = 304,934.10 × 91,163.80 - Step 4: Simplify right side
203,429.80x = 27,798,951,305.58 - Step 5: Solve for x
x = 27,798,951,305.58/203,429.80 - Step 6: Final answer
x = 136,651.32
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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.