Finding the Fourth Proportional to 312,303.09, 430,872.30 and 203,357.69
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Solution
The fourth proportional to 312,303.09, 430,872.30 and 203,357.69 is: 280,564.61
Step by Step Solution
- Step 1: Write the proportion equation
312,303.09 : 430,872.30 = 203,357.69 : x - Step 2: Convert to fraction form
312,303.09/430,872.30 = 203,357.69/x - Step 3: Cross multiply
312,303.09x = 430,872.30 × 203,357.69 - Step 4: Simplify right side
312,303.09x = 87,621,193,458.63 - Step 5: Solve for x
x = 87,621,193,458.63/312,303.09 - Step 6: Final answer
x = 280,564.61
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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.