Finding the Fourth Proportional to 206,277.67, 309,351.70 and 79,909.17
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Solution
The fourth proportional to 206,277.67, 309,351.70 and 79,909.17 is: 119,838.65
Step by Step Solution
- Step 1: Write the proportion equation
206,277.67 : 309,351.70 = 79,909.17 : x - Step 2: Convert to fraction form
206,277.67/309,351.70 = 79,909.17/x - Step 3: Cross multiply
206,277.67x = 309,351.70 × 79,909.17 - Step 4: Simplify right side
206,277.67x = 24,720,037,585.09 - Step 5: Solve for x
x = 24,720,037,585.09/206,277.67 - Step 6: Final answer
x = 119,838.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.