Finding the Fourth Proportional to 192,561.40, 288,842.10 and 129,575.80
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Solution
The fourth proportional to 192,561.40, 288,842.10 and 129,575.80 is: 194,363.70
Step by Step Solution
- Step 1: Write the proportion equation
192,561.40 : 288,842.10 = 129,575.80 : x - Step 2: Convert to fraction form
192,561.40/288,842.10 = 129,575.80/x - Step 3: Cross multiply
192,561.40x = 288,842.10 × 129,575.80 - Step 4: Simplify right side
192,561.40x = 37,426,946,181.18 - Step 5: Solve for x
x = 37,426,946,181.18/192,561.40 - Step 6: Final answer
x = 194,363.70
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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.