Finding the Fourth Proportional to 209,309.74, 288,745.94 and 124,366.66
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Solution
The fourth proportional to 209,309.74, 288,745.94 and 124,366.66 is: 171,565.68
Step by Step Solution
- Step 1: Write the proportion equation
209,309.74 : 288,745.94 = 124,366.66 : x - Step 2: Convert to fraction form
209,309.74/288,745.94 = 124,366.66/x - Step 3: Cross multiply
209,309.74x = 288,745.94 × 124,366.66 - Step 4: Simplify right side
209,309.74x = 35,910,368,146.36 - Step 5: Solve for x
x = 35,910,368,146.36/209,309.74 - Step 6: Final answer
x = 171,565.68
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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.