Finding the Fourth Proportional to 296,983.88, 409,840.80 and 161,018.09
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Solution
The fourth proportional to 296,983.88, 409,840.80 and 161,018.09 is: 222,206.62
Step by Step Solution
- Step 1: Write the proportion equation
296,983.88 : 409,840.80 = 161,018.09 : x - Step 2: Convert to fraction form
296,983.88/409,840.80 = 161,018.09/x - Step 3: Cross multiply
296,983.88x = 409,840.80 × 161,018.09 - Step 4: Simplify right side
296,983.88x = 65,991,782,820.07 - Step 5: Solve for x
x = 65,991,782,820.07/296,983.88 - Step 6: Final answer
x = 222,206.62
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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.