Finding the Fourth Proportional to 206,380.09, 284,779.15 and 121,480.75
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Solution
The fourth proportional to 206,380.09, 284,779.15 and 121,480.75 is: 167,628.50
Step by Step Solution
- Step 1: Write the proportion equation
206,380.09 : 284,779.15 = 121,480.75 : x - Step 2: Convert to fraction form
206,380.09/284,779.15 = 121,480.75/x - Step 3: Cross multiply
206,380.09x = 284,779.15 × 121,480.75 - Step 4: Simplify right side
206,380.09x = 34,595,184,726.36 - Step 5: Solve for x
x = 34,595,184,726.36/206,380.09 - Step 6: Final answer
x = 167,628.50
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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.