Finding the Fourth Proportional to 209,381.76, 288,949.68 and 113,892.48
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Solution
The fourth proportional to 209,381.76, 288,949.68 and 113,892.48 is: 157,173.17
Step by Step Solution
- Step 1: Write the proportion equation
209,381.76 : 288,949.68 = 113,892.48 : x - Step 2: Convert to fraction form
209,381.76/288,949.68 = 113,892.48/x - Step 3: Cross multiply
209,381.76x = 288,949.68 × 113,892.48 - Step 4: Simplify right side
209,381.76x = 32,909,195,650.41 - Step 5: Solve for x
x = 32,909,195,650.41/209,381.76 - Step 6: Final answer
x = 157,173.17
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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.