Finding the Fourth Proportional to 269,182.20, 403,319.70 and 212,806.20
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Solution
The fourth proportional to 269,182.20, 403,319.70 and 212,806.20 is: 318,850.70
Step by Step Solution
- Step 1: Write the proportion equation
269,182.20 : 403,319.70 = 212,806.20 : x - Step 2: Convert to fraction form
269,182.20/403,319.70 = 212,806.20/x - Step 3: Cross multiply
269,182.20x = 403,319.70 × 212,806.20 - Step 4: Simplify right side
269,182.20x = 85,828,932,742.14 - Step 5: Solve for x
x = 85,828,932,742.14/269,182.20 - Step 6: Final answer
x = 318,850.70
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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.