Finding the Fourth Proportional to 221,206.40, 305,251.66 and 125,699.84
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Solution
The fourth proportional to 221,206.40, 305,251.66 and 125,699.84 is: 173,458.29
Step by Step Solution
- Step 1: Write the proportion equation
221,206.40 : 305,251.66 = 125,699.84 : x - Step 2: Convert to fraction form
221,206.40/305,251.66 = 125,699.84/x - Step 3: Cross multiply
221,206.40x = 305,251.66 × 125,699.84 - Step 4: Simplify right side
221,206.40x = 38,370,084,821.73 - Step 5: Solve for x
x = 38,370,084,821.73/221,206.40 - Step 6: Final answer
x = 173,458.29
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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.