Finding the Fourth Proportional to 209,381.63, 314,101.53 and 67,193.55
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Solution
The fourth proportional to 209,381.63, 314,101.53 and 67,193.55 is: 100,799.66
Step by Step Solution
- Step 1: Write the proportion equation
209,381.63 : 314,101.53 = 67,193.55 : x - Step 2: Convert to fraction form
209,381.63/314,101.53 = 67,193.55/x - Step 3: Cross multiply
209,381.63x = 314,101.53 × 67,193.55 - Step 4: Simplify right side
209,381.63x = 21,105,596,861.13 - Step 5: Solve for x
x = 21,105,596,861.13/209,381.63 - Step 6: Final answer
x = 100,799.66
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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.