Finding the Fourth Proportional to 209,609.98, 289,266.96 and 114,121.91
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Solution
The fourth proportional to 209,609.98, 289,266.96 and 114,121.91 is: 157,491.07
Step by Step Solution
- Step 1: Write the proportion equation
209,609.98 : 289,266.96 = 114,121.91 : x - Step 2: Convert to fraction form
209,609.98/289,266.96 = 114,121.91/x - Step 3: Cross multiply
209,609.98x = 289,266.96 × 114,121.91 - Step 4: Simplify right side
209,609.98x = 33,011,699,126.22 - Step 5: Solve for x
x = 33,011,699,126.22/209,609.98 - Step 6: Final answer
x = 157,491.07
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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.