Finding the Fourth Proportional to 612,099.80, 918,149.70 and 162,819.80
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Solution
The fourth proportional to 612,099.80, 918,149.70 and 162,819.80 is: 244,229.70
Step by Step Solution
- Step 1: Write the proportion equation
612,099.80 : 918,149.70 = 162,819.80 : x - Step 2: Convert to fraction form
612,099.80/918,149.70 = 162,819.80/x - Step 3: Cross multiply
612,099.80x = 918,149.70 × 162,819.80 - Step 4: Simplify right side
612,099.80x = 149,492,950,524.06 - Step 5: Solve for x
x = 149,492,950,524.06/612,099.80 - Step 6: Final answer
x = 244,229.70
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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.