Finding the Fourth Proportional to 428,893.68, 591,944.14 and 237,968.58
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Solution
The fourth proportional to 428,893.68, 591,944.14 and 237,968.58 is: 328,435.95
Step by Step Solution
- Step 1: Write the proportion equation
428,893.68 : 591,944.14 = 237,968.58 : x - Step 2: Convert to fraction form
428,893.68/591,944.14 = 237,968.58/x - Step 3: Cross multiply
428,893.68x = 591,944.14 × 237,968.58 - Step 4: Simplify right side
428,893.68x = 140,864,105,245.28 - Step 5: Solve for x
x = 140,864,105,245.28/428,893.68 - Step 6: Final answer
x = 328,435.95
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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.