Finding the Fourth Proportional to 289,286.44, 433,939.74 and 89,588.68
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Solution
The fourth proportional to 289,286.44, 433,939.74 and 89,588.68 is: 134,386.14
Step by Step Solution
- Step 1: Write the proportion equation
289,286.44 : 433,939.74 = 89,588.68 : x - Step 2: Convert to fraction form
289,286.44/433,939.74 = 89,588.68/x - Step 3: Cross multiply
289,286.44x = 433,939.74 × 89,588.68 - Step 4: Simplify right side
289,286.44x = 38,876,088,506.14 - Step 5: Solve for x
x = 38,876,088,506.14/289,286.44 - Step 6: Final answer
x = 134,386.14
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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.