Finding the Fourth Proportional to 206,416.24, 309,585.36 and 73,291.12
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Solution
The fourth proportional to 206,416.24, 309,585.36 and 73,291.12 is: 109,922.83
Step by Step Solution
- Step 1: Write the proportion equation
206,416.24 : 309,585.36 = 73,291.12 : x - Step 2: Convert to fraction form
206,416.24/309,585.36 = 73,291.12/x - Step 3: Cross multiply
206,416.24x = 309,585.36 × 73,291.12 - Step 4: Simplify right side
206,416.24x = 22,689,857,770.00 - Step 5: Solve for x
x = 22,689,857,770.00/206,416.24 - Step 6: Final answer
x = 109,922.83
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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.