Finding the Fourth Proportional to 274,812.12, 412,198.47 and 85,267.62
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Solution
The fourth proportional to 274,812.12, 412,198.47 and 85,267.62 is: 127,895.31
Step by Step Solution
- Step 1: Write the proportion equation
274,812.12 : 412,198.47 = 85,267.62 : x - Step 2: Convert to fraction form
274,812.12/412,198.47 = 85,267.62/x - Step 3: Cross multiply
274,812.12x = 412,198.47 × 85,267.62 - Step 4: Simplify right side
274,812.12x = 35,147,182,504.54 - Step 5: Solve for x
x = 35,147,182,504.54/274,812.12 - Step 6: Final answer
x = 127,895.31
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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.