Finding the Fourth Proportional to 221,575.44, 305,772.48 and 120,973.44
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Solution
The fourth proportional to 221,575.44, 305,772.48 and 120,973.44 is: 166,942.46
Step by Step Solution
- Step 1: Write the proportion equation
221,575.44 : 305,772.48 = 120,973.44 : x - Step 2: Convert to fraction form
221,575.44/305,772.48 = 120,973.44/x - Step 3: Cross multiply
221,575.44x = 305,772.48 × 120,973.44 - Step 4: Simplify right side
221,575.44x = 36,990,348,762.93 - Step 5: Solve for x
x = 36,990,348,762.93/221,575.44 - Step 6: Final answer
x = 166,942.46
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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.