Finding the Fourth Proportional to 311,450.09, 466,810.65 and 142,986.69
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Solution
The fourth proportional to 311,450.09, 466,810.65 and 142,986.69 is: 214,312.70
Step by Step Solution
- Step 1: Write the proportion equation
311,450.09 : 466,810.65 = 142,986.69 : x - Step 2: Convert to fraction form
311,450.09/466,810.65 = 142,986.69/x - Step 3: Cross multiply
311,450.09x = 466,810.65 × 142,986.69 - Step 4: Simplify right side
311,450.09x = 66,747,709,700.25 - Step 5: Solve for x
x = 66,747,709,700.25/311,450.09 - Step 6: Final answer
x = 214,312.70
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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.