Finding the Fourth Proportional to 412,653.21, 618,927.09 and 159,760.68
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Solution
The fourth proportional to 412,653.21, 618,927.09 and 159,760.68 is: 239,620.61
Step by Step Solution
- Step 1: Write the proportion equation
412,653.21 : 618,927.09 = 159,760.68 : x - Step 2: Convert to fraction form
412,653.21/618,927.09 = 159,760.68/x - Step 3: Cross multiply
412,653.21x = 618,927.09 × 159,760.68 - Step 4: Simplify right side
412,653.21x = 98,880,212,768.82 - Step 5: Solve for x
x = 98,880,212,768.82/412,653.21 - Step 6: Final answer
x = 239,620.61
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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.