Finding the Fourth Proportional to 287,616.66, 396,912.99 and 160,300.44
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Solution
The fourth proportional to 287,616.66, 396,912.99 and 160,300.44 is: 221,215.72
Step by Step Solution
- Step 1: Write the proportion equation
287,616.66 : 396,912.99 = 160,300.44 : x - Step 2: Convert to fraction form
287,616.66/396,912.99 = 160,300.44/x - Step 3: Cross multiply
287,616.66x = 396,912.99 × 160,300.44 - Step 4: Simplify right side
287,616.66x = 63,625,326,938.72 - Step 5: Solve for x
x = 63,625,326,938.72/287,616.66 - Step 6: Final answer
x = 221,215.72
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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.