Finding the Fourth Proportional to 192,197.80, 288,296.70 and 125,842.60
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Solution
The fourth proportional to 192,197.80, 288,296.70 and 125,842.60 is: 188,763.90
Step by Step Solution
- Step 1: Write the proportion equation
192,197.80 : 288,296.70 = 125,842.60 : x - Step 2: Convert to fraction form
192,197.80/288,296.70 = 125,842.60/x - Step 3: Cross multiply
192,197.80x = 288,296.70 × 125,842.60 - Step 4: Simplify right side
192,197.80x = 36,280,006,299.42 - Step 5: Solve for x
x = 36,280,006,299.42/192,197.80 - Step 6: Final answer
x = 188,763.90
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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.