Finding the Fourth Proportional to 342,936.18, 473,376.15 and 279,163.26
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Solution
The fourth proportional to 342,936.18, 473,376.15 and 279,163.26 is: 385,346.42
Step by Step Solution
- Step 1: Write the proportion equation
342,936.18 : 473,376.15 = 279,163.26 : x - Step 2: Convert to fraction form
342,936.18/473,376.15 = 279,163.26/x - Step 3: Cross multiply
342,936.18x = 473,376.15 × 279,163.26 - Step 4: Simplify right side
342,936.18x = 132,149,229,240.25 - Step 5: Solve for x
x = 132,149,229,240.25/342,936.18 - Step 6: Final answer
x = 385,346.42
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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.