Finding the Fourth Proportional to 141.30, 211.95 and 50.00
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Solution
The fourth proportional to 141.30, 211.95 and 50.00 is: 74.99
Step by Step Solution
- Step 1: Write the proportion equation
141.30 : 211.95 = 50.00 : x - Step 2: Convert to fraction form
141.30/211.95 = 50.00/x - Step 3: Cross multiply
141.30x = 211.95 × 50.00 - Step 4: Simplify right side
141.30x = 10,596.19 - Step 5: Solve for x
x = 10,596.19/141.30 - Step 6: Final answer
x = 74.99
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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.