Finding the Fourth Proportional to 287,201.16, 396,326.90 and 159,874.02
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Solution
The fourth proportional to 287,201.16, 396,326.90 and 159,874.02 is: 220,620.19
Step by Step Solution
- Step 1: Write the proportion equation
287,201.16 : 396,326.90 = 159,874.02 : x - Step 2: Convert to fraction form
287,201.16/396,326.90 = 159,874.02/x - Step 3: Cross multiply
287,201.16x = 396,326.90 × 159,874.02 - Step 4: Simplify right side
287,201.16x = 63,362,374,737.14 - Step 5: Solve for x
x = 63,362,374,737.14/287,201.16 - Step 6: Final answer
x = 220,620.19
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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.