Finding the Fourth Proportional to 192,621.40, 288,932.10 and 129,635.80
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Solution
The fourth proportional to 192,621.40, 288,932.10 and 129,635.80 is: 194,453.70
Step by Step Solution
- Step 1: Write the proportion equation
192,621.40 : 288,932.10 = 129,635.80 : x - Step 2: Convert to fraction form
192,621.40/288,932.10 = 129,635.80/x - Step 3: Cross multiply
192,621.40x = 288,932.10 × 129,635.80 - Step 4: Simplify right side
192,621.40x = 37,455,943,929.18 - Step 5: Solve for x
x = 37,455,943,929.18/192,621.40 - Step 6: Final answer
x = 194,453.70
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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.