Finding the Fourth Proportional to 246.99, 370.62 and 138.99
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Solution
The fourth proportional to 246.99, 370.62 and 138.99 is: 208.56
Step by Step Solution
- Step 1: Write the proportion equation
246.99 : 370.62 = 138.99 : x - Step 2: Convert to fraction form
246.99/370.62 = 138.99/x - Step 3: Cross multiply
246.99x = 370.62 × 138.99 - Step 4: Simplify right side
246.99x = 51,512.47 - Step 5: Solve for x
x = 51,512.47/246.99 - Step 6: Final answer
x = 208.56
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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.