Finding the Fourth Proportional to 369.21, 553.68 and 125.67
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Solution
The fourth proportional to 369.21, 553.68 and 125.67 is: 188.46
Step by Step Solution
- Step 1: Write the proportion equation
369.21 : 553.68 = 125.67 : x - Step 2: Convert to fraction form
369.21/553.68 = 125.67/x - Step 3: Cross multiply
369.21x = 553.68 × 125.67 - Step 4: Simplify right side
369.21x = 69,580.97 - Step 5: Solve for x
x = 69,580.97/369.21 - Step 6: Final answer
x = 188.46
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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.