Finding the Fourth Proportional to 311,997.68, 430,449.96 and 254,536.88
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Solution
The fourth proportional to 311,997.68, 430,449.96 and 254,536.88 is: 351,173.73
Step by Step Solution
- Step 1: Write the proportion equation
311,997.68 : 430,449.96 = 254,536.88 : x - Step 2: Convert to fraction form
311,997.68/430,449.96 = 254,536.88/x - Step 3: Cross multiply
311,997.68x = 430,449.96 × 254,536.88 - Step 4: Simplify right side
311,997.68x = 109,565,389,814.53 - Step 5: Solve for x
x = 109,565,389,814.53/311,997.68 - Step 6: Final answer
x = 351,173.73
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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.