Finding the Fourth Proportional to 221,559.18, 305,750.09 and 120,957.18
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Solution
The fourth proportional to 221,559.18, 305,750.09 and 120,957.18 is: 166,920.05
Step by Step Solution
- Step 1: Write the proportion equation
221,559.18 : 305,750.09 = 120,957.18 : x - Step 2: Convert to fraction form
221,559.18/305,750.09 = 120,957.18/x - Step 3: Cross multiply
221,559.18x = 305,750.09 × 120,957.18 - Step 4: Simplify right side
221,559.18x = 36,982,668,671.15 - Step 5: Solve for x
x = 36,982,668,671.15/221,559.18 - Step 6: Final answer
x = 166,920.05
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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.