Finding the Fourth Proportional to 355,317.09, 490,343.99 and 194,178.93
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Solution
The fourth proportional to 355,317.09, 490,343.99 and 194,178.93 is: 267,970.42
Step by Step Solution
- Step 1: Write the proportion equation
355,317.09 : 490,343.99 = 194,178.93 : x - Step 2: Convert to fraction form
355,317.09/490,343.99 = 194,178.93/x - Step 3: Cross multiply
355,317.09x = 490,343.99 × 194,178.93 - Step 4: Simplify right side
355,317.09x = 95,214,471,310.13 - Step 5: Solve for x
x = 95,214,471,310.13/355,317.09 - Step 6: Final answer
x = 267,970.42
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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.