Finding the Fourth Proportional to 207,428.76, 310,880.70 and 132,519.96
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Solution
The fourth proportional to 207,428.76, 310,880.70 and 132,519.96 is: 198,612.28
Step by Step Solution
- Step 1: Write the proportion equation
207,428.76 : 310,880.70 = 132,519.96 : x - Step 2: Convert to fraction form
207,428.76/310,880.70 = 132,519.96/x - Step 3: Cross multiply
207,428.76x = 310,880.70 × 132,519.96 - Step 4: Simplify right side
207,428.76x = 41,197,897,928.77 - Step 5: Solve for x
x = 41,197,897,928.77/207,428.76 - Step 6: Final answer
x = 198,612.28
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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.