Finding the Fourth Proportional to 220,201.30, 330,301.95 and 79,941.70
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Solution
The fourth proportional to 220,201.30, 330,301.95 and 79,941.70 is: 119,912.55
Step by Step Solution
- Step 1: Write the proportion equation
220,201.30 : 330,301.95 = 79,941.70 : x - Step 2: Convert to fraction form
220,201.30/330,301.95 = 79,941.70/x - Step 3: Cross multiply
220,201.30x = 330,301.95 × 79,941.70 - Step 4: Simplify right side
220,201.30x = 26,404,899,396.32 - Step 5: Solve for x
x = 26,404,899,396.32/220,201.30 - Step 6: Final answer
x = 119,912.55
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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.