Finding the Fourth Proportional to 351.23, 526.79 and 107.70
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Solution
The fourth proportional to 351.23, 526.79 and 107.70 is: 161.53
Step by Step Solution
- Step 1: Write the proportion equation
351.23 : 526.79 = 107.70 : x - Step 2: Convert to fraction form
351.23/526.79 = 107.70/x - Step 3: Cross multiply
351.23x = 526.79 × 107.70 - Step 4: Simplify right side
351.23x = 56,734.74 - Step 5: Solve for x
x = 56,734.74/351.23 - Step 6: Final answer
x = 161.53
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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.