Finding the Fourth Proportional to 355,261.65, 490,207.55 and 202,305.62
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Solution
The fourth proportional to 355,261.65, 490,207.55 and 202,305.62 is: 279,151.26
Step by Step Solution
- Step 1: Write the proportion equation
355,261.65 : 490,207.55 = 202,305.62 : x - Step 2: Convert to fraction form
355,261.65/490,207.55 = 202,305.62/x - Step 3: Cross multiply
355,261.65x = 490,207.55 × 202,305.62 - Step 4: Simplify right side
355,261.65x = 99,171,738,868.87 - Step 5: Solve for x
x = 99,171,738,868.87/355,261.65 - Step 6: Final answer
x = 279,151.26
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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.