Finding the Fourth Proportional to 331,015.65, 496,134.68 and 153,146.94
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Solution
The fourth proportional to 331,015.65, 496,134.68 and 153,146.94 is: 229,540.53
Step by Step Solution
- Step 1: Write the proportion equation
331,015.65 : 496,134.68 = 153,146.94 : x - Step 2: Convert to fraction form
331,015.65/496,134.68 = 153,146.94/x - Step 3: Cross multiply
331,015.65x = 496,134.68 × 153,146.94 - Step 4: Simplify right side
331,015.65x = 75,981,507,304.14 - Step 5: Solve for x
x = 75,981,507,304.14/331,015.65 - Step 6: Final answer
x = 229,540.53
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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.