Finding the Fourth Proportional to 209,166.59, 288,543.63 and 136,611.99
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Solution
The fourth proportional to 209,166.59, 288,543.63 and 136,611.99 is: 188,455.14
Step by Step Solution
- Step 1: Write the proportion equation
209,166.59 : 288,543.63 = 136,611.99 : x - Step 2: Convert to fraction form
209,166.59/288,543.63 = 136,611.99/x - Step 3: Cross multiply
209,166.59x = 288,543.63 × 136,611.99 - Step 4: Simplify right side
209,166.59x = 39,418,519,154.59 - Step 5: Solve for x
x = 39,418,519,154.59/209,166.59 - Step 6: Final answer
x = 188,455.14
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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.