Finding the Fourth Proportional to 355,640.58, 490,791.16 and 194,505.99
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Solution
The fourth proportional to 355,640.58, 490,791.16 and 194,505.99 is: 268,422.18
Step by Step Solution
- Step 1: Write the proportion equation
355,640.58 : 490,791.16 = 194,505.99 : x - Step 2: Convert to fraction form
355,640.58/490,791.16 = 194,505.99/x - Step 3: Cross multiply
355,640.58x = 490,791.16 × 194,505.99 - Step 4: Simplify right side
355,640.58x = 95,461,817,032.56 - Step 5: Solve for x
x = 95,461,817,032.56/355,640.58 - Step 6: Final answer
x = 268,422.18
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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.