Finding the Fourth Proportional to 326,122.05, 489,183.08 and 282,382.05
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Solution
The fourth proportional to 326,122.05, 489,183.08 and 282,382.05 is: 423,573.08
Step by Step Solution
- Step 1: Write the proportion equation
326,122.05 : 489,183.08 = 282,382.05 : x - Step 2: Convert to fraction form
326,122.05/489,183.08 = 282,382.05/x - Step 3: Cross multiply
326,122.05x = 489,183.08 × 282,382.05 - Step 4: Simplify right side
326,122.05x = 138,136,519,543.80 - Step 5: Solve for x
x = 138,136,519,543.80/326,122.05 - Step 6: Final answer
x = 423,573.08
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1.5x scale
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.