Finding the Fourth Proportional to 209,847.13, 314,831.99 and 67,689.26
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Solution
The fourth proportional to 209,847.13, 314,831.99 and 67,689.26 is: 101,553.66
Step by Step Solution
- Step 1: Write the proportion equation
209,847.13 : 314,831.99 = 67,689.26 : x - Step 2: Convert to fraction form
209,847.13/314,831.99 = 67,689.26/x - Step 3: Cross multiply
209,847.13x = 314,831.99 × 67,689.26 - Step 4: Simplify right side
209,847.13x = 21,310,744,427.43 - Step 5: Solve for x
x = 21,310,744,427.43/209,847.13 - Step 6: Final answer
x = 101,553.66
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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.