Finding the Fourth Proportional to 209,161.68, 313,780.19 and 76,228.53
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Solution
The fourth proportional to 209,161.68, 313,780.19 and 76,228.53 is: 114,356.52
Step by Step Solution
- Step 1: Write the proportion equation
209,161.68 : 313,780.19 = 76,228.53 : x - Step 2: Convert to fraction form
209,161.68/313,780.19 = 76,228.53/x - Step 3: Cross multiply
209,161.68x = 313,780.19 × 76,228.53 - Step 4: Simplify right side
209,161.68x = 23,919,002,245.68 - Step 5: Solve for x
x = 23,919,002,245.68/209,161.68 - Step 6: Final answer
x = 114,356.52
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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.