Finding the Fourth Proportional to 354,634.20, 531,951.30 and 144,163.80
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Solution
The fourth proportional to 354,634.20, 531,951.30 and 144,163.80 is: 216,245.70
Step by Step Solution
- Step 1: Write the proportion equation
354,634.20 : 531,951.30 = 144,163.80 : x - Step 2: Convert to fraction form
354,634.20/531,951.30 = 144,163.80/x - Step 3: Cross multiply
354,634.20x = 531,951.30 × 144,163.80 - Step 4: Simplify right side
354,634.20x = 76,688,120,822.94 - Step 5: Solve for x
x = 76,688,120,822.94/354,634.20 - Step 6: Final answer
x = 216,245.70
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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.