Finding the Fourth Proportional to 409,903.98, 565,716.84 and 240,138.09
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Solution
The fourth proportional to 409,903.98, 565,716.84 and 240,138.09 is: 331,419.47
Step by Step Solution
- Step 1: Write the proportion equation
409,903.98 : 565,716.84 = 240,138.09 : x - Step 2: Convert to fraction form
409,903.98/565,716.84 = 240,138.09/x - Step 3: Cross multiply
409,903.98x = 565,716.84 × 240,138.09 - Step 4: Simplify right side
409,903.98x = 135,850,161,438.44 - Step 5: Solve for x
x = 135,850,161,438.44/409,903.98 - Step 6: Final answer
x = 331,419.47
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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.