Finding the Fourth Proportional to 192,958.20, 289,437.30 and 68,311.80
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Solution
The fourth proportional to 192,958.20, 289,437.30 and 68,311.80 is: 102,467.70
Step by Step Solution
- Step 1: Write the proportion equation
192,958.20 : 289,437.30 = 68,311.80 : x - Step 2: Convert to fraction form
192,958.20/289,437.30 = 68,311.80/x - Step 3: Cross multiply
192,958.20x = 289,437.30 × 68,311.80 - Step 4: Simplify right side
192,958.20x = 19,771,982,950.14 - Step 5: Solve for x
x = 19,771,982,950.14/192,958.20 - Step 6: Final answer
x = 102,467.70
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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.