Finding the Fourth Proportional to 209,154.24, 288,639.81 and 123,097.68
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Solution
The fourth proportional to 209,154.24, 288,639.81 and 123,097.68 is: 169,878.89
Step by Step Solution
- Step 1: Write the proportion equation
209,154.24 : 288,639.81 = 123,097.68 : x - Step 2: Convert to fraction form
209,154.24/288,639.81 = 123,097.68/x - Step 3: Cross multiply
209,154.24x = 288,639.81 × 123,097.68 - Step 4: Simplify right side
209,154.24x = 35,530,890,966.64 - Step 5: Solve for x
x = 35,530,890,966.64/209,154.24 - Step 6: Final answer
x = 169,878.89
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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.