Finding the Fourth Proportional to 252,120.84, 378,180.18 and 74,628.96
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Solution
The fourth proportional to 252,120.84, 378,180.18 and 74,628.96 is: 111,943.12
Step by Step Solution
- Step 1: Write the proportion equation
252,120.84 : 378,180.18 = 74,628.96 : x - Step 2: Convert to fraction form
252,120.84/378,180.18 = 74,628.96/x - Step 3: Cross multiply
252,120.84x = 378,180.18 × 74,628.96 - Step 4: Simplify right side
252,120.84x = 28,223,193,526.01 - Step 5: Solve for x
x = 28,223,193,526.01/252,120.84 - Step 6: Final answer
x = 111,943.12
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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.