Finding the Fourth Proportional to 370.76, 511.74 and 252.68
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Solution
The fourth proportional to 370.76, 511.74 and 252.68 is: 348.76
Step by Step Solution
- Step 1: Write the proportion equation
370.76 : 511.74 = 252.68 : x - Step 2: Convert to fraction form
370.76/511.74 = 252.68/x - Step 3: Cross multiply
370.76x = 511.74 × 252.68 - Step 4: Simplify right side
370.76x = 129,306.46 - Step 5: Solve for x
x = 129,306.46/370.76 - Step 6: Final answer
x = 348.76
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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.