Finding the Fourth Proportional to 189,261.12, 283,967.42 and 76,949.97
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Solution
The fourth proportional to 189,261.12, 283,967.42 and 76,949.97 is: 115,455.75
Step by Step Solution
- Step 1: Write the proportion equation
189,261.12 : 283,967.42 = 76,949.97 : x - Step 2: Convert to fraction form
189,261.12/283,967.42 = 76,949.97/x - Step 3: Cross multiply
189,261.12x = 283,967.42 × 76,949.97 - Step 4: Simplify right side
189,261.12x = 21,851,284,065.23 - Step 5: Solve for x
x = 21,851,284,065.23/189,261.12 - Step 6: Final answer
x = 115,455.75
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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.