Finding the Fourth Proportional to 209,146.24, 288,628.77 and 123,089.68
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Solution
The fourth proportional to 209,146.24, 288,628.77 and 123,089.68 is: 169,867.85
Step by Step Solution
- Step 1: Write the proportion equation
209,146.24 : 288,628.77 = 123,089.68 : x - Step 2: Convert to fraction form
209,146.24/288,628.77 = 123,089.68/x - Step 3: Cross multiply
209,146.24x = 288,628.77 × 123,089.68 - Step 4: Simplify right side
209,146.24x = 35,527,222,938.09 - Step 5: Solve for x
x = 35,527,222,938.09/209,146.24 - Step 6: Final answer
x = 169,867.85
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1.5x scale
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.