Finding the Fourth Proportional to 313,997.21, 470,869.01 and 121,770.44
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Solution
The fourth proportional to 313,997.21, 470,869.01 and 121,770.44 is: 182,606.48
Step by Step Solution
- Step 1: Write the proportion equation
313,997.21 : 470,869.01 = 121,770.44 : x - Step 2: Convert to fraction form
313,997.21/470,869.01 = 121,770.44/x - Step 3: Cross multiply
313,997.21x = 470,869.01 × 121,770.44 - Step 4: Simplify right side
313,997.21x = 57,337,926,474.22 - Step 5: Solve for x
x = 57,337,926,474.22/313,997.21 - Step 6: Final answer
x = 182,606.48
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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.