Finding the Fourth Proportional to 251,748.81, 347,413.46 and 138,570.75
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Solution
The fourth proportional to 251,748.81, 347,413.46 and 138,570.75 is: 191,227.69
Step by Step Solution
- Step 1: Write the proportion equation
251,748.81 : 347,413.46 = 138,570.75 : x - Step 2: Convert to fraction form
251,748.81/347,413.46 = 138,570.75/x - Step 3: Cross multiply
251,748.81x = 347,413.46 × 138,570.75 - Step 4: Simplify right side
251,748.81x = 48,141,343,019.44 - Step 5: Solve for x
x = 48,141,343,019.44/251,748.81 - Step 6: Final answer
x = 191,227.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.