Finding the Fourth Proportional to 289,249.26, 433,707.78 and 154,146.99
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Solution
The fourth proportional to 289,249.26, 433,707.78 and 154,146.99 is: 231,131.96
Step by Step Solution
- Step 1: Write the proportion equation
289,249.26 : 433,707.78 = 154,146.99 : x - Step 2: Convert to fraction form
289,249.26/433,707.78 = 154,146.99/x - Step 3: Cross multiply
289,249.26x = 433,707.78 × 154,146.99 - Step 4: Simplify right side
289,249.26x = 66,854,748,826.58 - Step 5: Solve for x
x = 66,854,748,826.58/289,249.26 - Step 6: Final answer
x = 231,131.96
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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.