Finding the Fourth Proportional to 221,470.98, 305,625.69 and 120,869.70
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Solution
The fourth proportional to 221,470.98, 305,625.69 and 120,869.70 is: 166,797.86
Step by Step Solution
- Step 1: Write the proportion equation
221,470.98 : 305,625.69 = 120,869.70 : x - Step 2: Convert to fraction form
221,470.98/305,625.69 = 120,869.70/x - Step 3: Cross multiply
221,470.98x = 305,625.69 × 120,869.70 - Step 4: Simplify right side
221,470.98x = 36,940,885,462.59 - Step 5: Solve for x
x = 36,940,885,462.59/221,470.98 - Step 6: Final answer
x = 166,797.86
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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.