Finding the Fourth Proportional to 209,638.05, 289,305.71 and 114,149.98
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Solution
The fourth proportional to 209,638.05, 289,305.71 and 114,149.98 is: 157,529.80
Step by Step Solution
- Step 1: Write the proportion equation
209,638.05 : 289,305.71 = 114,149.98 : x - Step 2: Convert to fraction form
209,638.05/289,305.71 = 114,149.98/x - Step 3: Cross multiply
209,638.05x = 289,305.71 × 114,149.98 - Step 4: Simplify right side
209,638.05x = 33,024,241,010.39 - Step 5: Solve for x
x = 33,024,241,010.39/209,638.05 - Step 6: Final answer
x = 157,529.80
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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.