Finding the Fourth Proportional to 206,565.06, 284,994.81 and 115,907.70
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Solution
The fourth proportional to 206,565.06, 284,994.81 and 115,907.70 is: 159,916.17
Step by Step Solution
- Step 1: Write the proportion equation
206,565.06 : 284,994.81 = 115,907.70 : x - Step 2: Convert to fraction form
206,565.06/284,994.81 = 115,907.70/x - Step 3: Cross multiply
206,565.06x = 284,994.81 × 115,907.70 - Step 4: Simplify right side
206,565.06x = 33,033,092,939.04 - Step 5: Solve for x
x = 33,033,092,939.04/206,565.06 - Step 6: Final answer
x = 159,916.17
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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.