Finding the Fourth Proportional to 268,766.40, 403,399.05 and 135,740.07
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Solution
The fourth proportional to 268,766.40, 403,399.05 and 135,740.07 is: 203,736.09
Step by Step Solution
- Step 1: Write the proportion equation
268,766.40 : 403,399.05 = 135,740.07 : x - Step 2: Convert to fraction form
268,766.40/403,399.05 = 135,740.07/x - Step 3: Cross multiply
268,766.40x = 403,399.05 × 135,740.07 - Step 4: Simplify right side
268,766.40x = 54,757,415,284.93 - Step 5: Solve for x
x = 54,757,415,284.93/268,766.40 - Step 6: Final answer
x = 203,736.09
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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.