Finding the Fourth Proportional to 203,920.20, 305,880.30 and 161,929.80
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Solution
The fourth proportional to 203,920.20, 305,880.30 and 161,929.80 is: 242,894.70
Step by Step Solution
- Step 1: Write the proportion equation
203,920.20 : 305,880.30 = 161,929.80 : x - Step 2: Convert to fraction form
203,920.20/305,880.30 = 161,929.80/x - Step 3: Cross multiply
203,920.20x = 305,880.30 × 161,929.80 - Step 4: Simplify right side
203,920.20x = 49,531,135,802.94 - Step 5: Solve for x
x = 49,531,135,802.94/203,920.20 - Step 6: Final answer
x = 242,894.70
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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.