Finding the Fourth Proportional to 422,409.36, 633,561.16 and 138,076.08
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Solution
The fourth proportional to 422,409.36, 633,561.16 and 138,076.08 is: 207,096.83
Step by Step Solution
- Step 1: Write the proportion equation
422,409.36 : 633,561.16 = 138,076.08 : x - Step 2: Convert to fraction form
422,409.36/633,561.16 = 138,076.08/x - Step 3: Cross multiply
422,409.36x = 633,561.16 × 138,076.08 - Step 4: Simplify right side
422,409.36x = 87,479,641,413.05 - Step 5: Solve for x
x = 87,479,641,413.05/422,409.36 - Step 6: Final answer
x = 207,096.83
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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.