Finding the Fourth Proportional to 247.08, 370.08 and 198.75
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Solution
The fourth proportional to 247.08, 370.08 and 198.75 is: 297.69
Step by Step Solution
- Step 1: Write the proportion equation
247.08 : 370.08 = 198.75 : x - Step 2: Convert to fraction form
247.08/370.08 = 198.75/x - Step 3: Cross multiply
247.08x = 370.08 × 198.75 - Step 4: Simplify right side
247.08x = 73,553.40 - Step 5: Solve for x
x = 73,553.40/247.08 - Step 6: Final answer
x = 297.69
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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.