Finding the Fourth Proportional to 370.44, 555.74 and 126.95
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Solution
The fourth proportional to 370.44, 555.74 and 126.95 is: 190.45
Step by Step Solution
- Step 1: Write the proportion equation
370.44 : 555.74 = 126.95 : x - Step 2: Convert to fraction form
370.44/555.74 = 126.95/x - Step 3: Cross multiply
370.44x = 555.74 × 126.95 - Step 4: Simplify right side
370.44x = 70,551.19 - Step 5: Solve for x
x = 70,551.19/370.44 - Step 6: Final answer
x = 190.45
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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.