Finding the Fourth Proportional to 211,982.70, 318,492.45 and 159,494.70
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Solution
The fourth proportional to 211,982.70, 318,492.45 and 159,494.70 is: 239,632.09
Step by Step Solution
- Step 1: Write the proportion equation
211,982.70 : 318,492.45 = 159,494.70 : x - Step 2: Convert to fraction form
211,982.70/318,492.45 = 159,494.70/x - Step 3: Cross multiply
211,982.70x = 318,492.45 × 159,494.70 - Step 4: Simplify right side
211,982.70x = 50,797,857,765.02 - Step 5: Solve for x
x = 50,797,857,765.02/211,982.70 - Step 6: Final answer
x = 239,632.09
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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.