Finding the Fourth Proportional to 221,163.19, 305,211.69 and 125,673.91
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Solution
The fourth proportional to 221,163.19, 305,211.69 and 125,673.91 is: 173,433.68
Step by Step Solution
- Step 1: Write the proportion equation
221,163.19 : 305,211.69 = 125,673.91 : x - Step 2: Convert to fraction form
221,163.19/305,211.69 = 125,673.91/x - Step 3: Cross multiply
221,163.19x = 305,211.69 × 125,673.91 - Step 4: Simplify right side
221,163.19x = 38,357,145,696.98 - Step 5: Solve for x
x = 38,357,145,696.98/221,163.19 - Step 6: Final answer
x = 173,433.68
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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.