Finding the Fourth Proportional to 370.19, 555.09 and 126.63
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Solution
The fourth proportional to 370.19, 555.09 and 126.63 is: 189.88
Step by Step Solution
- Step 1: Write the proportion equation
370.19 : 555.09 = 126.63 : x - Step 2: Convert to fraction form
370.19/555.09 = 126.63/x - Step 3: Cross multiply
370.19x = 555.09 × 126.63 - Step 4: Simplify right side
370.19x = 70,291.05 - Step 5: Solve for x
x = 70,291.05/370.19 - Step 6: Final answer
x = 189.88
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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.