Finding the Fourth Proportional to 209,212.74, 288,707.49 and 113,716.98
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Solution
The fourth proportional to 209,212.74, 288,707.49 and 113,716.98 is: 156,926.12
Step by Step Solution
- Step 1: Write the proportion equation
209,212.74 : 288,707.49 = 113,716.98 : x - Step 2: Convert to fraction form
209,212.74/288,707.49 = 113,716.98/x - Step 3: Cross multiply
209,212.74x = 288,707.49 × 113,716.98 - Step 4: Simplify right side
209,212.74x = 32,830,943,866.18 - Step 5: Solve for x
x = 32,830,943,866.18/209,212.74 - Step 6: Final answer
x = 156,926.12
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.