Finding the Fourth Proportional to 511,132.37, 705,367.50 and 281,698.06
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Solution
The fourth proportional to 511,132.37, 705,367.50 and 281,698.06 is: 388,745.98
Step by Step Solution
- Step 1: Write the proportion equation
511,132.37 : 705,367.50 = 281,698.06 : x - Step 2: Convert to fraction form
511,132.37/705,367.50 = 281,698.06/x - Step 3: Cross multiply
511,132.37x = 705,367.50 × 281,698.06 - Step 4: Simplify right side
511,132.37x = 198,700,652,810.21 - Step 5: Solve for x
x = 198,700,652,810.21/511,132.37 - Step 6: Final answer
x = 388,745.98
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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.