Finding the Fourth Proportional to 166,311.84, 249,464.21 and 53,991.90
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Solution
The fourth proportional to 166,311.84, 249,464.21 and 53,991.90 is: 80,986.70
Step by Step Solution
- Step 1: Write the proportion equation
166,311.84 : 249,464.21 = 53,991.90 : x - Step 2: Convert to fraction form
166,311.84/249,464.21 = 53,991.90/x - Step 3: Cross multiply
166,311.84x = 249,464.21 × 53,991.90 - Step 4: Simplify right side
166,311.84x = 13,469,046,409.94 - Step 5: Solve for x
x = 13,469,046,409.94/166,311.84 - Step 6: Final answer
x = 80,986.70
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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.