Finding the Fourth Proportional to 206,163.81, 309,364.65 and 111,394.26
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Solution
The fourth proportional to 206,163.81, 309,364.65 and 111,394.26 is: 167,155.65
Step by Step Solution
- Step 1: Write the proportion equation
206,163.81 : 309,364.65 = 111,394.26 : x - Step 2: Convert to fraction form
206,163.81/309,364.65 = 111,394.26/x - Step 3: Cross multiply
206,163.81x = 309,364.65 × 111,394.26 - Step 4: Simplify right side
206,163.81x = 34,461,446,256.91 - Step 5: Solve for x
x = 34,461,446,256.91/206,163.81 - Step 6: Final answer
x = 167,155.65
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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.