Finding the Fourth Proportional to 257,996.68, 356,057.77 and 143,297.44
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Solution
The fourth proportional to 257,996.68, 356,057.77 and 143,297.44 is: 197,762.88
Step by Step Solution
- Step 1: Write the proportion equation
257,996.68 : 356,057.77 = 143,297.44 : x - Step 2: Convert to fraction form
257,996.68/356,057.77 = 143,297.44/x - Step 3: Cross multiply
257,996.68x = 356,057.77 × 143,297.44 - Step 4: Simplify right side
257,996.68x = 51,022,166,933.11 - Step 5: Solve for x
x = 51,022,166,933.11/257,996.68 - Step 6: Final answer
x = 197,762.88
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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.