Finding the Fourth Proportional to 209,087.06, 313,324.41 and 103,695.53
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Solution
The fourth proportional to 209,087.06, 313,324.41 and 103,695.53 is: 155,391.45
Step by Step Solution
- Step 1: Write the proportion equation
209,087.06 : 313,324.41 = 103,695.53 : x - Step 2: Convert to fraction form
209,087.06/313,324.41 = 103,695.53/x - Step 3: Cross multiply
209,087.06x = 313,324.41 × 103,695.53 - Step 4: Simplify right side
209,087.06x = 32,490,340,756.89 - Step 5: Solve for x
x = 32,490,340,756.89/209,087.06 - Step 6: Final answer
x = 155,391.45
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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.