Finding the Fourth Proportional to 252,243.84, 378,367.11 and 74,752.39
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Solution
The fourth proportional to 252,243.84, 378,367.11 and 74,752.39 is: 112,128.99
Step by Step Solution
- Step 1: Write the proportion equation
252,243.84 : 378,367.11 = 74,752.39 : x - Step 2: Convert to fraction form
252,243.84/378,367.11 = 74,752.39/x - Step 3: Cross multiply
252,243.84x = 378,367.11 × 74,752.39 - Step 4: Simplify right side
252,243.84x = 28,283,845,769.89 - Step 5: Solve for x
x = 28,283,845,769.89/252,243.84 - Step 6: Final answer
x = 112,128.99
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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.