Finding the Fourth Proportional to 355,278.14, 490,277.98 and 194,129.72
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Solution
The fourth proportional to 355,278.14, 490,277.98 and 194,129.72 is: 267,895.82
Step by Step Solution
- Step 1: Write the proportion equation
355,278.14 : 490,277.98 = 194,129.72 : x - Step 2: Convert to fraction form
355,278.14/490,277.98 = 194,129.72/x - Step 3: Cross multiply
355,278.14x = 490,277.98 × 194,129.72 - Step 4: Simplify right side
355,278.14x = 95,177,526,979.57 - Step 5: Solve for x
x = 95,177,526,979.57/355,278.14 - Step 6: Final answer
x = 267,895.82
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1.5x scale
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.