Finding the Fourth Proportional to 221,249.58, 305,323.84 and 120,647.58
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Solution
The fourth proportional to 221,249.58, 305,323.84 and 120,647.58 is: 166,493.34
Step by Step Solution
- Step 1: Write the proportion equation
221,249.58 : 305,323.84 = 120,647.58 : x - Step 2: Convert to fraction form
221,249.58/305,323.84 = 120,647.58/x - Step 3: Cross multiply
221,249.58x = 305,323.84 × 120,647.58 - Step 4: Simplify right side
221,249.58x = 36,836,582,412.31 - Step 5: Solve for x
x = 36,836,582,412.31/221,249.58 - Step 6: Final answer
x = 166,493.34
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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.