Finding the Fourth Proportional to 263,135.49, 363,126.96 and 142,276.74
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Solution
The fourth proportional to 263,135.49, 363,126.96 and 142,276.74 is: 196,341.89
Step by Step Solution
- Step 1: Write the proportion equation
263,135.49 : 363,126.96 = 142,276.74 : x - Step 2: Convert to fraction form
263,135.49/363,126.96 = 142,276.74/x - Step 3: Cross multiply
263,135.49x = 363,126.96 × 142,276.74 - Step 4: Simplify right side
263,135.49x = 51,664,520,074.91 - Step 5: Solve for x
x = 51,664,520,074.91/263,135.49 - Step 6: Final answer
x = 196,341.89
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.