Finding the Fourth Proportional to 209,177.68, 313,639.92 and 84,372.88
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Solution
The fourth proportional to 209,177.68, 313,639.92 and 84,372.88 is: 126,508.26
Step by Step Solution
- Step 1: Write the proportion equation
209,177.68 : 313,639.92 = 84,372.88 : x - Step 2: Convert to fraction form
209,177.68/313,639.92 = 84,372.88/x - Step 3: Cross multiply
209,177.68x = 313,639.92 × 84,372.88 - Step 4: Simplify right side
209,177.68x = 26,462,703,333.37 - Step 5: Solve for x
x = 26,462,703,333.37/209,177.68 - Step 6: Final answer
x = 126,508.26
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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.