Finding the Fourth Proportional to 211,040.44, 316,464.98 and 91,040.79
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Solution
The fourth proportional to 211,040.44, 316,464.98 and 91,040.79 is: 136,519.90
Step by Step Solution
- Step 1: Write the proportion equation
211,040.44 : 316,464.98 = 91,040.79 : x - Step 2: Convert to fraction form
211,040.44/316,464.98 = 91,040.79/x - Step 3: Cross multiply
211,040.44x = 316,464.98 × 91,040.79 - Step 4: Simplify right side
211,040.44x = 28,811,219,847.90 - Step 5: Solve for x
x = 28,811,219,847.90/211,040.44 - Step 6: Final answer
x = 136,519.90
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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.