Finding the Fourth Proportional to 149,441.26, 206,227.58 and 81,458.23
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Solution
The fourth proportional to 149,441.26, 206,227.58 and 81,458.23 is: 112,411.62
Step by Step Solution
- Step 1: Write the proportion equation
149,441.26 : 206,227.58 = 81,458.23 : x - Step 2: Convert to fraction form
149,441.26/206,227.58 = 81,458.23/x - Step 3: Cross multiply
149,441.26x = 206,227.58 × 81,458.23 - Step 4: Simplify right side
149,441.26x = 16,798,933,332.06 - Step 5: Solve for x
x = 16,798,933,332.06/149,441.26 - Step 6: Final answer
x = 112,411.62
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1.5x scale
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.