Finding the Fourth Proportional to 138,414.80, 207,492.60 and 108,412.40
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Solution
The fourth proportional to 138,414.80, 207,492.60 and 108,412.40 is: 162,517.09
Step by Step Solution
- Step 1: Write the proportion equation
138,414.80 : 207,492.60 = 108,412.40 : x - Step 2: Convert to fraction form
138,414.80/207,492.60 = 108,412.40/x - Step 3: Cross multiply
138,414.80x = 207,492.60 × 108,412.40 - Step 4: Simplify right side
138,414.80x = 22,494,770,748.24 - Step 5: Solve for x
x = 22,494,770,748.24/138,414.80 - Step 6: Final answer
x = 162,517.09
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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.