Finding the Fourth Proportional to 268,403.68, 402,273.14 and 135,211.28
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Solution
The fourth proportional to 268,403.68, 402,273.14 and 135,211.28 is: 202,649.47
Step by Step Solution
- Step 1: Write the proportion equation
268,403.68 : 402,273.14 = 135,211.28 : x - Step 2: Convert to fraction form
268,403.68/402,273.14 = 135,211.28/x - Step 3: Cross multiply
268,403.68x = 402,273.14 × 135,211.28 - Step 4: Simplify right side
268,403.68x = 54,391,863,481.60 - Step 5: Solve for x
x = 54,391,863,481.60/268,403.68 - Step 6: Final answer
x = 202,649.47
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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.