Finding the Fourth Proportional to 221,351.41, 305,479.38 and 125,866.99
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Solution
The fourth proportional to 221,351.41, 305,479.38 and 125,866.99 is: 173,704.65
Step by Step Solution
- Step 1: Write the proportion equation
221,351.41 : 305,479.38 = 125,866.99 : x - Step 2: Convert to fraction form
221,351.41/305,479.38 = 125,866.99/x - Step 3: Cross multiply
221,351.41x = 305,479.38 × 125,866.99 - Step 4: Simplify right side
221,351.41x = 38,449,770,067.67 - Step 5: Solve for x
x = 38,449,770,067.67/221,351.41 - Step 6: Final answer
x = 173,704.65
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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.