Finding the Fourth Proportional to 203,359.70, 280,653.18 and 112,744.09
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Solution
The fourth proportional to 203,359.70, 280,653.18 and 112,744.09 is: 155,596.15
Step by Step Solution
- Step 1: Write the proportion equation
203,359.70 : 280,653.18 = 112,744.09 : x - Step 2: Convert to fraction form
203,359.70/280,653.18 = 112,744.09/x - Step 3: Cross multiply
203,359.70x = 280,653.18 × 112,744.09 - Step 4: Simplify right side
203,359.70x = 31,641,987,384.71 - Step 5: Solve for x
x = 31,641,987,384.71/203,359.70 - Step 6: Final answer
x = 155,596.15
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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.