Finding the Fourth Proportional to 252.70, 379.06 and 70.08
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Solution
The fourth proportional to 252.70, 379.06 and 70.08 is: 105.12
Step by Step Solution
- Step 1: Write the proportion equation
252.70 : 379.06 = 70.08 : x - Step 2: Convert to fraction form
252.70/379.06 = 70.08/x - Step 3: Cross multiply
252.70x = 379.06 × 70.08 - Step 4: Simplify right side
252.70x = 26,562.28 - Step 5: Solve for x
x = 26,562.28/252.70 - Step 6: Final answer
x = 105.12
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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.