Finding the Fourth Proportional to 505,782.70, 758,674.05 and 131,805.70
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Solution
The fourth proportional to 505,782.70, 758,674.05 and 131,805.70 is: 197,708.55
Step by Step Solution
- Step 1: Write the proportion equation
505,782.70 : 758,674.05 = 131,805.70 : x - Step 2: Convert to fraction form
505,782.70/758,674.05 = 131,805.70/x - Step 3: Cross multiply
505,782.70x = 758,674.05 × 131,805.70 - Step 4: Simplify right side
505,782.70x = 99,997,564,232.09 - Step 5: Solve for x
x = 99,997,564,232.09/505,782.70 - Step 6: Final answer
x = 197,708.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.