Finding the Fourth Proportional to 209,607.21, 289,250.19 and 114,111.99
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Solution
The fourth proportional to 209,607.21, 289,250.19 and 114,111.99 is: 157,470.32
Step by Step Solution
- Step 1: Write the proportion equation
209,607.21 : 289,250.19 = 114,111.99 : x - Step 2: Convert to fraction form
209,607.21/289,250.19 = 114,111.99/x - Step 3: Cross multiply
209,607.21x = 289,250.19 × 114,111.99 - Step 4: Simplify right side
209,607.21x = 33,006,914,788.78 - Step 5: Solve for x
x = 33,006,914,788.78/209,607.21 - Step 6: Final answer
x = 157,470.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.