Finding the Fourth Proportional to 326,099.40, 489,149.10 and 236,869.80
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Solution
The fourth proportional to 326,099.40, 489,149.10 and 236,869.80 is: 355,304.70
Step by Step Solution
- Step 1: Write the proportion equation
326,099.40 : 489,149.10 = 236,869.80 : x - Step 2: Convert to fraction form
326,099.40/489,149.10 = 236,869.80/x - Step 3: Cross multiply
326,099.40x = 489,149.10 × 236,869.80 - Step 4: Simplify right side
326,099.40x = 115,864,649,487.18 - Step 5: Solve for x
x = 115,864,649,487.18/326,099.40 - Step 6: Final answer
x = 355,304.70
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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.