Finding the Fourth Proportional to 221,047.68, 305,048.64 and 120,445.44
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Solution
The fourth proportional to 221,047.68, 305,048.64 and 120,445.44 is: 166,216.26
Step by Step Solution
- Step 1: Write the proportion equation
221,047.68 : 305,048.64 = 120,445.44 : x - Step 2: Convert to fraction form
221,047.68/305,048.64 = 120,445.44/x - Step 3: Cross multiply
221,047.68x = 305,048.64 × 120,445.44 - Step 4: Simplify right side
221,047.68x = 36,741,717,666.20 - Step 5: Solve for x
x = 36,741,717,666.20/221,047.68 - Step 6: Final answer
x = 166,216.26
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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.