Finding the Fourth Proportional to 331,996.95, 498,121.18 and 198,972.68
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Solution
The fourth proportional to 331,996.95, 498,121.18 and 198,972.68 is: 298,534.38
Step by Step Solution
- Step 1: Write the proportion equation
331,996.95 : 498,121.18 = 198,972.68 : x - Step 2: Convert to fraction form
331,996.95/498,121.18 = 198,972.68/x - Step 3: Cross multiply
331,996.95x = 498,121.18 × 198,972.68 - Step 4: Simplify right side
331,996.95x = 99,112,503,161.32 - Step 5: Solve for x
x = 99,112,503,161.32/331,996.95 - Step 6: Final answer
x = 298,534.38
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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.