Finding the Fourth Proportional to 252,418.20, 378,598.14 and 74,906.70
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Solution
The fourth proportional to 252,418.20, 378,598.14 and 74,906.70 is: 112,351.40
Step by Step Solution
- Step 1: Write the proportion equation
252,418.20 : 378,598.14 = 74,906.70 : x - Step 2: Convert to fraction form
252,418.20/378,598.14 = 74,906.70/x - Step 3: Cross multiply
252,418.20x = 378,598.14 × 74,906.70 - Step 4: Simplify right side
252,418.20x = 28,359,537,293.54 - Step 5: Solve for x
x = 28,359,537,293.54/252,418.20 - Step 6: Final answer
x = 112,351.40
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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.