Finding the Fourth Proportional to 287,275.36, 396,442.76 and 159,953.69
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Solution
The fourth proportional to 287,275.36, 396,442.76 and 159,953.69 is: 220,737.62
Step by Step Solution
- Step 1: Write the proportion equation
287,275.36 : 396,442.76 = 159,953.69 : x - Step 2: Convert to fraction form
287,275.36/396,442.76 = 159,953.69/x - Step 3: Cross multiply
287,275.36x = 396,442.76 × 159,953.69 - Step 4: Simplify right side
287,275.36x = 63,412,480,297.13 - Step 5: Solve for x
x = 63,412,480,297.13/287,275.36 - Step 6: Final answer
x = 220,737.62
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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.