Finding the Fourth Proportional to 351.15, 526.74 and 107.68
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Solution
The fourth proportional to 351.15, 526.74 and 107.68 is: 161.52
Step by Step Solution
- Step 1: Write the proportion equation
351.15 : 526.74 = 107.68 : x - Step 2: Convert to fraction form
351.15/526.74 = 107.68/x - Step 3: Cross multiply
351.15x = 526.74 × 107.68 - Step 4: Simplify right side
351.15x = 56,718.63 - Step 5: Solve for x
x = 56,718.63/351.15 - Step 6: Final answer
x = 161.52
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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.