Finding the Fourth Proportional to 285,861.81, 394,437.12 and 164,958.98
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Solution
The fourth proportional to 285,861.81, 394,437.12 and 164,958.98 is: 227,613.28
Step by Step Solution
- Step 1: Write the proportion equation
285,861.81 : 394,437.12 = 164,958.98 : x - Step 2: Convert to fraction form
285,861.81/394,437.12 = 164,958.98/x - Step 3: Cross multiply
285,861.81x = 394,437.12 × 164,958.98 - Step 4: Simplify right side
285,861.81x = 65,065,944,989.34 - Step 5: Solve for x
x = 65,065,944,989.34/285,861.81 - Step 6: Final answer
x = 227,613.28
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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.