Finding the Fourth Proportional to 505,617.12, 758,425.68 and 131,640.48
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Solution
The fourth proportional to 505,617.12, 758,425.68 and 131,640.48 is: 197,460.72
Step by Step Solution
- Step 1: Write the proportion equation
505,617.12 : 758,425.68 = 131,640.48 : x - Step 2: Convert to fraction form
505,617.12/758,425.68 = 131,640.48/x - Step 3: Cross multiply
505,617.12x = 758,425.68 × 131,640.48 - Step 4: Simplify right side
505,617.12x = 99,839,520,559.53 - Step 5: Solve for x
x = 99,839,520,559.53/505,617.12 - Step 6: Final answer
x = 197,460.72
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Similar ratio
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1.5x scale
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.