Finding the Fourth Proportional to 289,030.97, 398,863.08 and 161,706.66
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Solution
The fourth proportional to 289,030.97, 398,863.08 and 161,706.66 is: 223,155.39
Step by Step Solution
- Step 1: Write the proportion equation
289,030.97 : 398,863.08 = 161,706.66 : x - Step 2: Convert to fraction form
289,030.97/398,863.08 = 161,706.66/x - Step 3: Cross multiply
289,030.97x = 398,863.08 × 161,706.66 - Step 4: Simplify right side
289,030.97x = 64,498,816,464.11 - Step 5: Solve for x
x = 64,498,816,464.11/289,030.97 - Step 6: Final answer
x = 223,155.39
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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.