Finding the Fourth Proportional to 287,530.05, 396,793.09 and 166,743.05
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Solution
The fourth proportional to 287,530.05, 396,793.09 and 166,743.05 is: 230,106.35
Step by Step Solution
- Step 1: Write the proportion equation
287,530.05 : 396,793.09 = 166,743.05 : x - Step 2: Convert to fraction form
287,530.05/396,793.09 = 166,743.05/x - Step 3: Cross multiply
287,530.05x = 396,793.09 × 166,743.05 - Step 4: Simplify right side
287,530.05x = 66,162,489,053.54 - Step 5: Solve for x
x = 66,162,489,053.54/287,530.05 - Step 6: Final answer
x = 230,106.35
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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.