Finding the Fourth Proportional to 221,357.26, 305,471.60 and 125,863.95
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Solution
The fourth proportional to 221,357.26, 305,471.60 and 125,863.95 is: 173,691.45
Step by Step Solution
- Step 1: Write the proportion equation
221,357.26 : 305,471.60 = 125,863.95 : x - Step 2: Convert to fraction form
221,357.26/305,471.60 = 125,863.95/x - Step 3: Cross multiply
221,357.26x = 305,471.60 × 125,863.95 - Step 4: Simplify right side
221,357.26x = 38,447,863,649.00 - Step 5: Solve for x
x = 38,447,863,649.00/221,357.26 - Step 6: Final answer
x = 173,691.45
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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.