Finding the Fourth Proportional to 370.41, 555.66 and 126.99
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Solution
The fourth proportional to 370.41, 555.66 and 126.99 is: 190.50
Step by Step Solution
- Step 1: Write the proportion equation
370.41 : 555.66 = 126.99 : x - Step 2: Convert to fraction form
370.41/555.66 = 126.99/x - Step 3: Cross multiply
370.41x = 555.66 × 126.99 - Step 4: Simplify right side
370.41x = 70,563.26 - Step 5: Solve for x
x = 70,563.26/370.41 - Step 6: Final answer
x = 190.50
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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.