Finding the Fourth Proportional to 351.08, 526.68 and 131.70
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Solution
The fourth proportional to 351.08, 526.68 and 131.70 is: 197.57
Step by Step Solution
- Step 1: Write the proportion equation
351.08 : 526.68 = 131.70 : x - Step 2: Convert to fraction form
351.08/526.68 = 131.70/x - Step 3: Cross multiply
351.08x = 526.68 × 131.70 - Step 4: Simplify right side
351.08x = 69,361.29 - Step 5: Solve for x
x = 69,361.29/351.08 - Step 6: Final answer
x = 197.57
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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.