Finding the Fourth Proportional to 370.82, 511.40 and 252.74
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Solution
The fourth proportional to 370.82, 511.40 and 252.74 is: 348.56
Step by Step Solution
- Step 1: Write the proportion equation
370.82 : 511.40 = 252.74 : x - Step 2: Convert to fraction form
370.82/511.40 = 252.74/x - Step 3: Cross multiply
370.82x = 511.40 × 252.74 - Step 4: Simplify right side
370.82x = 129,251.24 - Step 5: Solve for x
x = 129,251.24/370.82 - Step 6: Final answer
x = 348.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.