Finding the Fourth Proportional to 209,308.39, 288,869.94 and 117,452.99
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Solution
The fourth proportional to 209,308.39, 288,869.94 and 117,452.99 is: 162,098.80
Step by Step Solution
- Step 1: Write the proportion equation
209,308.39 : 288,869.94 = 117,452.99 : x - Step 2: Convert to fraction form
209,308.39/288,869.94 = 117,452.99/x - Step 3: Cross multiply
209,308.39x = 288,869.94 × 117,452.99 - Step 4: Simplify right side
209,308.39x = 33,928,638,896.30 - Step 5: Solve for x
x = 33,928,638,896.30/209,308.39 - Step 6: Final answer
x = 162,098.80
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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.