Finding the Fourth Proportional to 189,844.28, 261,990.36 and 104,966.80
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Solution
The fourth proportional to 189,844.28, 261,990.36 and 104,966.80 is: 144,857.09
Step by Step Solution
- Step 1: Write the proportion equation
189,844.28 : 261,990.36 = 104,966.80 : x - Step 2: Convert to fraction form
189,844.28/261,990.36 = 104,966.80/x - Step 3: Cross multiply
189,844.28x = 261,990.36 × 104,966.80 - Step 4: Simplify right side
189,844.28x = 27,500,289,720.05 - Step 5: Solve for x
x = 27,500,289,720.05/189,844.28 - Step 6: Final answer
x = 144,857.09
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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.