Finding the Fourth Proportional to 355,445.67, 490,480.29 and 202,471.83
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Solution
The fourth proportional to 355,445.67, 490,480.29 and 202,471.83 is: 279,391.34
Step by Step Solution
- Step 1: Write the proportion equation
355,445.67 : 490,480.29 = 202,471.83 : x - Step 2: Convert to fraction form
355,445.67/490,480.29 = 202,471.83/x - Step 3: Cross multiply
355,445.67x = 490,480.29 × 202,471.83 - Step 4: Simplify right side
355,445.67x = 99,308,441,895.23 - Step 5: Solve for x
x = 99,308,441,895.23/355,445.67 - Step 6: Final answer
x = 279,391.34
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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.