Finding the Fourth Proportional to 355,096.16, 490,057.71 and 202,134.41
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Solution
The fourth proportional to 355,096.16, 490,057.71 and 202,134.41 is: 278,959.72
Step by Step Solution
- Step 1: Write the proportion equation
355,096.16 : 490,057.71 = 202,134.41 : x - Step 2: Convert to fraction form
355,096.16/490,057.71 = 202,134.41/x - Step 3: Cross multiply
355,096.16x = 490,057.71 × 202,134.41 - Step 4: Simplify right side
355,096.16x = 99,057,523,626.51 - Step 5: Solve for x
x = 99,057,523,626.51/355,096.16 - Step 6: Final answer
x = 278,959.72
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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.