Finding the Fourth Proportional to 209,420.16, 313,901.76 and 102,877.44
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Solution
The fourth proportional to 209,420.16, 313,901.76 and 102,877.44 is: 154,203.92
Step by Step Solution
- Step 1: Write the proportion equation
209,420.16 : 313,901.76 = 102,877.44 : x - Step 2: Convert to fraction form
209,420.16/313,901.76 = 102,877.44/x - Step 3: Cross multiply
209,420.16x = 313,901.76 × 102,877.44 - Step 4: Simplify right side
209,420.16x = 32,293,409,480.29 - Step 5: Solve for x
x = 32,293,409,480.29/209,420.16 - Step 6: Final answer
x = 154,203.92
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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.