Finding the Fourth Proportional to 209,239.79, 313,861.61 and 149,014.19
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Solution
The fourth proportional to 209,239.79, 313,861.61 and 149,014.19 is: 223,522.65
Step by Step Solution
- Step 1: Write the proportion equation
209,239.79 : 313,861.61 = 149,014.19 : x - Step 2: Convert to fraction form
209,239.79/313,861.61 = 149,014.19/x - Step 3: Cross multiply
209,239.79x = 313,861.61 × 149,014.19 - Step 4: Simplify right side
209,239.79x = 46,769,832,841.18 - Step 5: Solve for x
x = 46,769,832,841.18/209,239.79 - Step 6: Final answer
x = 223,522.65
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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.