Finding the Fourth Proportional to 221,175.28, 331,762.86 and 73,431.28
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Solution
The fourth proportional to 221,175.28, 331,762.86 and 73,431.28 is: 110,146.90
Step by Step Solution
- Step 1: Write the proportion equation
221,175.28 : 331,762.86 = 73,431.28 : x - Step 2: Convert to fraction form
221,175.28/331,762.86 = 73,431.28/x - Step 3: Cross multiply
221,175.28x = 331,762.86 × 73,431.28 - Step 4: Simplify right side
221,175.28x = 24,361,771,466.26 - Step 5: Solve for x
x = 24,361,771,466.26/221,175.28 - Step 6: Final answer
x = 110,146.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.