Finding the Fourth Proportional to 209,220.84, 313,713.12 and 191,367.75
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Solution
The fourth proportional to 209,220.84, 313,713.12 and 191,367.75 is: 286,943.57
Step by Step Solution
- Step 1: Write the proportion equation
209,220.84 : 313,713.12 = 191,367.75 : x - Step 2: Convert to fraction form
209,220.84/313,713.12 = 191,367.75/x - Step 3: Cross multiply
209,220.84x = 313,713.12 × 191,367.75 - Step 4: Simplify right side
209,220.84x = 60,034,573,919.88 - Step 5: Solve for x
x = 60,034,573,919.88/209,220.84 - Step 6: Final answer
x = 286,943.57
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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.