Finding the Fourth Proportional to 206,991.12, 310,488.68 and 113,445.84
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Solution
The fourth proportional to 206,991.12, 310,488.68 and 113,445.84 is: 170,169.86
Step by Step Solution
- Step 1: Write the proportion equation
206,991.12 : 310,488.68 = 113,445.84 : x - Step 2: Convert to fraction form
206,991.12/310,488.68 = 113,445.84/x - Step 3: Cross multiply
206,991.12x = 310,488.68 × 113,445.84 - Step 4: Simplify right side
206,991.12x = 35,223,649,113.09 - Step 5: Solve for x
x = 35,223,649,113.09/206,991.12 - Step 6: Final answer
x = 170,169.86
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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.