Finding the Fourth Proportional to 261,997.53, 392,715.99 and 135,510.41
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Solution
The fourth proportional to 261,997.53, 392,715.99 and 135,510.41 is: 203,120.64
Step by Step Solution
- Step 1: Write the proportion equation
261,997.53 : 392,715.99 = 135,510.41 : x - Step 2: Convert to fraction form
261,997.53/392,715.99 = 135,510.41/x - Step 3: Cross multiply
261,997.53x = 392,715.99 × 135,510.41 - Step 4: Simplify right side
261,997.53x = 53,217,105,800.25 - Step 5: Solve for x
x = 53,217,105,800.25/261,997.53 - Step 6: Final answer
x = 203,120.64
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1.5x scale
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.