Finding the Fourth Proportional to 276,942.74, 415,413.96 and 66,580.62
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Solution
The fourth proportional to 276,942.74, 415,413.96 and 66,580.62 is: 99,870.89
Step by Step Solution
- Step 1: Write the proportion equation
276,942.74 : 415,413.96 = 66,580.62 : x - Step 2: Convert to fraction form
276,942.74/415,413.96 = 66,580.62/x - Step 3: Cross multiply
276,942.74x = 415,413.96 × 66,580.62 - Step 4: Simplify right side
276,942.74x = 27,658,519,013.46 - Step 5: Solve for x
x = 27,658,519,013.46/276,942.74 - Step 6: Final answer
x = 99,870.89
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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.