Finding the Fourth Proportional to 209,682.63, 289,389.36 and 124,799.69
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Solution
The fourth proportional to 209,682.63, 289,389.36 and 124,799.69 is: 172,239.84
Step by Step Solution
- Step 1: Write the proportion equation
209,682.63 : 289,389.36 = 124,799.69 : x - Step 2: Convert to fraction form
209,682.63/289,389.36 = 124,799.69/x - Step 3: Cross multiply
209,682.63x = 289,389.36 × 124,799.69 - Step 4: Simplify right side
209,682.63x = 36,115,702,417.30 - Step 5: Solve for x
x = 36,115,702,417.30/209,682.63 - Step 6: Final answer
x = 172,239.84
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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.