Finding the Fourth Proportional to 283,722.80, 391,413.36 and 186,801.62
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Solution
The fourth proportional to 283,722.80, 391,413.36 and 186,801.62 is: 257,704.53
Step by Step Solution
- Step 1: Write the proportion equation
283,722.80 : 391,413.36 = 186,801.62 : x - Step 2: Convert to fraction form
283,722.80/391,413.36 = 186,801.62/x - Step 3: Cross multiply
283,722.80x = 391,413.36 × 186,801.62 - Step 4: Simplify right side
283,722.80x = 73,116,649,737.64 - Step 5: Solve for x
x = 73,116,649,737.64/283,722.80 - Step 6: Final answer
x = 257,704.53
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1.5x scale
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.