Finding the Fourth Proportional to 341,639.80, 512,459.70 and 326,087.80
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Solution
The fourth proportional to 341,639.80, 512,459.70 and 326,087.80 is: 489,131.70
Step by Step Solution
- Step 1: Write the proportion equation
341,639.80 : 512,459.70 = 326,087.80 : x - Step 2: Convert to fraction form
341,639.80/512,459.70 = 326,087.80/x - Step 3: Cross multiply
341,639.80x = 512,459.70 × 326,087.80 - Step 4: Simplify right side
341,639.80x = 167,106,856,161.66 - Step 5: Solve for x
x = 167,106,856,161.66/341,639.80 - Step 6: Final answer
x = 489,131.70
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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.