Finding the Fourth Proportional to 511,129.28, 705,363.23 and 281,694.84
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Solution
The fourth proportional to 511,129.28, 705,363.23 and 281,694.84 is: 388,741.54
Step by Step Solution
- Step 1: Write the proportion equation
511,129.28 : 705,363.23 = 281,694.84 : x - Step 2: Convert to fraction form
511,129.28/705,363.23 = 281,694.84/x - Step 3: Cross multiply
511,129.28x = 705,363.23 × 281,694.84 - Step 4: Simplify right side
511,129.28x = 198,697,184,243.53 - Step 5: Solve for x
x = 198,697,184,243.53/511,129.28 - Step 6: Final answer
x = 388,741.54
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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.