Finding the Fourth Proportional to 408,051.45, 612,163.58 and 123,718.65
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Solution
The fourth proportional to 408,051.45, 612,163.58 and 123,718.65 is: 185,604.17
Step by Step Solution
- Step 1: Write the proportion equation
408,051.45 : 612,163.58 = 123,718.65 : x - Step 2: Convert to fraction form
408,051.45/612,163.58 = 123,718.65/x - Step 3: Cross multiply
408,051.45x = 612,163.58 × 123,718.65 - Step 4: Simplify right side
408,051.45x = 75,736,051,078.17 - Step 5: Solve for x
x = 75,736,051,078.17/408,051.45 - Step 6: Final answer
x = 185,604.17
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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.