Finding the Fourth Proportional to 391,438.68, 587,163.42 and 110,955.84
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Solution
The fourth proportional to 391,438.68, 587,163.42 and 110,955.84 is: 166,435.29
Step by Step Solution
- Step 1: Write the proportion equation
391,438.68 : 587,163.42 = 110,955.84 : x - Step 2: Convert to fraction form
391,438.68/587,163.42 = 110,955.84/x - Step 3: Cross multiply
391,438.68x = 587,163.42 × 110,955.84 - Step 4: Simplify right side
391,438.68x = 65,149,210,483.37 - Step 5: Solve for x
x = 65,149,210,483.37/391,438.68 - Step 6: Final answer
x = 166,435.29
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.