Finding the Fourth Proportional to 355,225.20, 490,187.24 and 202,279.02
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Solution
The fourth proportional to 355,225.20, 490,187.24 and 202,279.02 is: 279,131.65
Step by Step Solution
- Step 1: Write the proportion equation
355,225.20 : 490,187.24 = 202,279.02 : x - Step 2: Convert to fraction form
355,225.20/490,187.24 = 202,279.02/x - Step 3: Cross multiply
355,225.20x = 490,187.24 × 202,279.02 - Step 4: Simplify right side
355,225.20x = 99,154,594,523.70 - Step 5: Solve for x
x = 99,154,594,523.70/355,225.20 - Step 6: Final answer
x = 279,131.65
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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.