Finding the Fourth Proportional to 134.35, 201.53 and 47.70
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Solution
The fourth proportional to 134.35, 201.53 and 47.70 is: 71.55
Step by Step Solution
- Step 1: Write the proportion equation
134.35 : 201.53 = 47.70 : x - Step 2: Convert to fraction form
134.35/201.53 = 47.70/x - Step 3: Cross multiply
134.35x = 201.53 × 47.70 - Step 4: Simplify right side
134.35x = 9,613.10 - Step 5: Solve for x
x = 9,613.10/134.35 - Step 6: Final answer
x = 71.55
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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.