Finding the Fourth Proportional to 209,311.62, 288,841.25 and 118,673.68
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Solution
The fourth proportional to 209,311.62, 288,841.25 and 118,673.68 is: 163,764.70
Step by Step Solution
- Step 1: Write the proportion equation
209,311.62 : 288,841.25 = 118,673.68 : x - Step 2: Convert to fraction form
209,311.62/288,841.25 = 118,673.68/x - Step 3: Cross multiply
209,311.62x = 288,841.25 × 118,673.68 - Step 4: Simplify right side
209,311.62x = 34,277,854,417.73 - Step 5: Solve for x
x = 34,277,854,417.73/209,311.62 - Step 6: Final answer
x = 163,764.70
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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.