Finding the Fourth Proportional to 269,176.20, 403,310.70 and 212,800.20
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Solution
The fourth proportional to 269,176.20, 403,310.70 and 212,800.20 is: 318,841.70
Step by Step Solution
- Step 1: Write the proportion equation
269,176.20 : 403,310.70 = 212,800.20 : x - Step 2: Convert to fraction form
269,176.20/403,310.70 = 212,800.20/x - Step 3: Cross multiply
269,176.20x = 403,310.70 × 212,800.20 - Step 4: Simplify right side
269,176.20x = 85,824,597,622.14 - Step 5: Solve for x
x = 85,824,597,622.14/269,176.20 - Step 6: Final answer
x = 318,841.70
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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.