Finding the Fourth Proportional to 647,236.20, 970,163.10 and 247,722.60
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Solution
The fourth proportional to 647,236.20, 970,163.10 and 247,722.60 is: 371,319.35
Step by Step Solution
- Step 1: Write the proportion equation
647,236.20 : 970,163.10 = 247,722.60 : x - Step 2: Convert to fraction form
647,236.20/970,163.10 = 247,722.60/x - Step 3: Cross multiply
647,236.20x = 970,163.10 × 247,722.60 - Step 4: Simplify right side
647,236.20x = 240,331,325,556.06 - Step 5: Solve for x
x = 240,331,325,556.06/647,236.20 - Step 6: Final answer
x = 371,319.35
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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.