Finding the Fourth Proportional to 355,622.14, 490,609.70 and 233,143.92
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Solution
The fourth proportional to 355,622.14, 490,609.70 and 233,143.92 is: 321,641.02
Step by Step Solution
- Step 1: Write the proportion equation
355,622.14 : 490,609.70 = 233,143.92 : x - Step 2: Convert to fraction form
355,622.14/490,609.70 = 233,143.92/x - Step 3: Cross multiply
355,622.14x = 490,609.70 × 233,143.92 - Step 4: Simplify right side
355,622.14x = 114,382,667,482.30 - Step 5: Solve for x
x = 114,382,667,482.30/355,622.14 - Step 6: Final answer
x = 321,641.02
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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.