Finding the Fourth Proportional to 221,236.50, 305,306.37 and 120,634.74
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Solution
The fourth proportional to 221,236.50, 305,306.37 and 120,634.74 is: 166,475.94
Step by Step Solution
- Step 1: Write the proportion equation
221,236.50 : 305,306.37 = 120,634.74 : x - Step 2: Convert to fraction form
221,236.50/305,306.37 = 120,634.74/x - Step 3: Cross multiply
221,236.50x = 305,306.37 × 120,634.74 - Step 4: Simplify right side
221,236.50x = 36,830,554,565.29 - Step 5: Solve for x
x = 36,830,554,565.29/221,236.50 - Step 6: Final answer
x = 166,475.94
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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.