Finding the Fourth Proportional to 206,218.24, 284,567.70 and 121,318.92
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Solution
The fourth proportional to 206,218.24, 284,567.70 and 121,318.92 is: 167,412.18
Step by Step Solution
- Step 1: Write the proportion equation
206,218.24 : 284,567.70 = 121,318.92 : x - Step 2: Convert to fraction form
206,218.24/284,567.70 = 121,318.92/x - Step 3: Cross multiply
206,218.24x = 284,567.70 × 121,318.92 - Step 4: Simplify right side
206,218.24x = 34,523,446,030.88 - Step 5: Solve for x
x = 34,523,446,030.88/206,218.24 - Step 6: Final answer
x = 167,412.18
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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.