Finding the Fourth Proportional to 283,740.88, 391,563.60 and 156,413.68
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Solution
The fourth proportional to 283,740.88, 391,563.60 and 156,413.68 is: 215,851.53
Step by Step Solution
- Step 1: Write the proportion equation
283,740.88 : 391,563.60 = 156,413.68 : x - Step 2: Convert to fraction form
283,740.88/391,563.60 = 156,413.68/x - Step 3: Cross multiply
283,740.88x = 391,563.60 × 156,413.68 - Step 4: Simplify right side
283,740.88x = 61,245,903,630.05 - Step 5: Solve for x
x = 61,245,903,630.05/283,740.88 - Step 6: Final answer
x = 215,851.53
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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.