Finding the Fourth Proportional to 141.08, 211.14 and 80.19
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Solution
The fourth proportional to 141.08, 211.14 and 80.19 is: 120.02
Step by Step Solution
- Step 1: Write the proportion equation
141.08 : 211.14 = 80.19 : x - Step 2: Convert to fraction form
141.08/211.14 = 80.19/x - Step 3: Cross multiply
141.08x = 211.14 × 80.19 - Step 4: Simplify right side
141.08x = 16,931.32 - Step 5: Solve for x
x = 16,931.32/141.08 - Step 6: Final answer
x = 120.02
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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.