Finding the Fourth Proportional to 311,687.93, 430,129.47 and 177,551.93
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Solution
The fourth proportional to 311,687.93, 430,129.47 and 177,551.93 is: 245,021.74
Step by Step Solution
- Step 1: Write the proportion equation
311,687.93 : 430,129.47 = 177,551.93 : x - Step 2: Convert to fraction form
311,687.93/430,129.47 = 177,551.93/x - Step 3: Cross multiply
311,687.93x = 430,129.47 × 177,551.93 - Step 4: Simplify right side
311,687.93x = 76,370,317,548.38 - Step 5: Solve for x
x = 76,370,317,548.38/311,687.93 - Step 6: Final answer
x = 245,021.74
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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.