Finding the Fourth Proportional to 311,843.93, 430,345.24 and 168,603.97
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Solution
The fourth proportional to 311,843.93, 430,345.24 and 168,603.97 is: 232,673.81
Step by Step Solution
- Step 1: Write the proportion equation
311,843.93 : 430,345.24 = 168,603.97 : x - Step 2: Convert to fraction form
311,843.93/430,345.24 = 168,603.97/x - Step 3: Cross multiply
311,843.93x = 430,345.24 × 168,603.97 - Step 4: Simplify right side
311,843.93x = 72,557,917,006.59 - Step 5: Solve for x
x = 72,557,917,006.59/311,843.93 - Step 6: Final answer
x = 232,673.81
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1.5x scale
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.