Finding the Fourth Proportional to 306,990.09, 423,613.44 and 170,997.84
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Solution
The fourth proportional to 306,990.09, 423,613.44 and 170,997.84 is: 235,958.70
Step by Step Solution
- Step 1: Write the proportion equation
306,990.09 : 423,613.44 = 170,997.84 : x - Step 2: Convert to fraction form
306,990.09/423,613.44 = 170,997.84/x - Step 3: Cross multiply
306,990.09x = 423,613.44 × 170,997.84 - Step 4: Simplify right side
306,990.09x = 72,436,983,234.97 - Step 5: Solve for x
x = 72,436,983,234.97/306,990.09 - Step 6: Final answer
x = 235,958.70
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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.