Finding the Fourth Proportional to 263,137.74, 363,130.06 and 142,278.99
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Solution
The fourth proportional to 263,137.74, 363,130.06 and 142,278.99 is: 196,344.99
Step by Step Solution
- Step 1: Write the proportion equation
263,137.74 : 363,130.06 = 142,278.99 : x - Step 2: Convert to fraction form
263,137.74/363,130.06 = 142,278.99/x - Step 3: Cross multiply
263,137.74x = 363,130.06 × 142,278.99 - Step 4: Simplify right side
263,137.74x = 51,665,778,175.44 - Step 5: Solve for x
x = 51,665,778,175.44/263,137.74 - Step 6: Final answer
x = 196,344.99
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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.