Finding the Fourth Proportional to 511,249.99, 705,529.91 and 281,816.12
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Solution
The fourth proportional to 511,249.99, 705,529.91 and 281,816.12 is: 388,908.96
Step by Step Solution
- Step 1: Write the proportion equation
511,249.99 : 705,529.91 = 281,816.12 : x - Step 2: Convert to fraction form
511,249.99/705,529.91 = 281,816.12/x - Step 3: Cross multiply
511,249.99x = 705,529.91 × 281,816.12 - Step 4: Simplify right side
511,249.99x = 198,829,701,780.15 - Step 5: Solve for x
x = 198,829,701,780.15/511,249.99 - Step 6: Final answer
x = 388,908.96
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1.5x scale
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.