Finding the Fourth Proportional to 221,132.73, 305,163.26 and 125,639.55
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Solution
The fourth proportional to 221,132.73, 305,163.26 and 125,639.55 is: 173,382.63
Step by Step Solution
- Step 1: Write the proportion equation
221,132.73 : 305,163.26 = 125,639.55 : x - Step 2: Convert to fraction form
221,132.73/305,163.26 = 125,639.55/x - Step 3: Cross multiply
221,132.73x = 305,163.26 × 125,639.55 - Step 4: Simplify right side
221,132.73x = 38,340,574,034.74 - Step 5: Solve for x
x = 38,340,574,034.74/221,132.73 - Step 6: Final answer
x = 173,382.63
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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.