Finding the Fourth Proportional to 351.21, 526.92 and 107.74
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Solution
The fourth proportional to 351.21, 526.92 and 107.74 is: 161.64
Step by Step Solution
- Step 1: Write the proportion equation
351.21 : 526.92 = 107.74 : x - Step 2: Convert to fraction form
351.21/526.92 = 107.74/x - Step 3: Cross multiply
351.21x = 526.92 × 107.74 - Step 4: Simplify right side
351.21x = 56,770.36 - Step 5: Solve for x
x = 56,770.36/351.21 - Step 6: Final answer
x = 161.64
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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.