Finding the Fourth Proportional to 266,939.11, 400,129.71 and 89,299.99
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Solution
The fourth proportional to 266,939.11, 400,129.71 and 89,299.99 is: 133,856.67
Step by Step Solution
- Step 1: Write the proportion equation
266,939.11 : 400,129.71 = 89,299.99 : x - Step 2: Convert to fraction form
266,939.11/400,129.71 = 89,299.99/x - Step 3: Cross multiply
266,939.11x = 400,129.71 × 89,299.99 - Step 4: Simplify right side
266,939.11x = 35,731,579,101.70 - Step 5: Solve for x
x = 35,731,579,101.70/266,939.11 - Step 6: Final answer
x = 133,856.67
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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.