Finding the Fourth Proportional to 664,108.80, 996,163.20 and 220,876.80
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Solution
The fourth proportional to 664,108.80, 996,163.20 and 220,876.80 is: 331,315.20
Step by Step Solution
- Step 1: Write the proportion equation
664,108.80 : 996,163.20 = 220,876.80 : x - Step 2: Convert to fraction form
664,108.80/996,163.20 = 220,876.80/x - Step 3: Cross multiply
664,108.80x = 996,163.20 × 220,876.80 - Step 4: Simplify right side
664,108.80x = 220,029,339,893.76 - Step 5: Solve for x
x = 220,029,339,893.76/664,108.80 - Step 6: Final answer
x = 331,315.20
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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.