Finding the Fourth Proportional to 231,721.05, 347,711.18 and 98,578.65
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Solution
The fourth proportional to 231,721.05, 347,711.18 and 98,578.65 is: 147,923.11
Step by Step Solution
- Step 1: Write the proportion equation
231,721.05 : 347,711.18 = 98,578.65 : x - Step 2: Convert to fraction form
231,721.05/347,711.18 = 98,578.65/x - Step 3: Cross multiply
231,721.05x = 347,711.18 × 98,578.65 - Step 4: Simplify right side
231,721.05x = 34,276,898,221.41 - Step 5: Solve for x
x = 34,276,898,221.41/231,721.05 - Step 6: Final answer
x = 147,923.11
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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.