Finding the Fourth Proportional to 202,836.28, 279,908.79 and 112,189.99
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Solution
The fourth proportional to 202,836.28, 279,908.79 and 112,189.99 is: 154,819.27
Step by Step Solution
- Step 1: Write the proportion equation
202,836.28 : 279,908.79 = 112,189.99 : x - Step 2: Convert to fraction form
202,836.28/279,908.79 = 112,189.99/x - Step 3: Cross multiply
202,836.28x = 279,908.79 × 112,189.99 - Step 4: Simplify right side
202,836.28x = 31,402,964,351.01 - Step 5: Solve for x
x = 31,402,964,351.01/202,836.28 - Step 6: Final answer
x = 154,819.27
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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.