Finding the Fourth Proportional to 357.87, 536.77 and 126.74
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Solution
The fourth proportional to 357.87, 536.77 and 126.74 is: 190.09
Step by Step Solution
- Step 1: Write the proportion equation
357.87 : 536.77 = 126.74 : x - Step 2: Convert to fraction form
357.87/536.77 = 126.74/x - Step 3: Cross multiply
357.87x = 536.77 × 126.74 - Step 4: Simplify right side
357.87x = 68,027.23 - Step 5: Solve for x
x = 68,027.23/357.87 - Step 6: Final answer
x = 190.09
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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.