Finding the Fourth Proportional to 287,905.54, 397,318.17 and 160,589.62
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Solution
The fourth proportional to 287,905.54, 397,318.17 and 160,589.62 is: 221,618.43
Step by Step Solution
- Step 1: Write the proportion equation
287,905.54 : 397,318.17 = 160,589.62 : x - Step 2: Convert to fraction form
287,905.54/397,318.17 = 160,589.62/x - Step 3: Cross multiply
287,905.54x = 397,318.17 × 160,589.62 - Step 4: Simplify right side
287,905.54x = 63,805,173,939.40 - Step 5: Solve for x
x = 63,805,173,939.40/287,905.54 - Step 6: Final answer
x = 221,618.43
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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.