Finding the Fourth Proportional to 209,317.80, 288,866.17 and 119,911.08
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Solution
The fourth proportional to 209,317.80, 288,866.17 and 119,911.08 is: 165,481.64
Step by Step Solution
- Step 1: Write the proportion equation
209,317.80 : 288,866.17 = 119,911.08 : x - Step 2: Convert to fraction form
209,317.80/288,866.17 = 119,911.08/x - Step 3: Cross multiply
209,317.80x = 288,866.17 × 119,911.08 - Step 4: Simplify right side
209,317.80x = 34,638,253,820.61 - Step 5: Solve for x
x = 34,638,253,820.61/209,317.80 - Step 6: Final answer
x = 165,481.64
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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.