Finding the Fourth Proportional to 234,102.64, 351,163.96 and 91,978.68
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Solution
The fourth proportional to 234,102.64, 351,163.96 and 91,978.68 is: 137,971.95
Step by Step Solution
- Step 1: Write the proportion equation
234,102.64 : 351,163.96 = 91,978.68 : x - Step 2: Convert to fraction form
234,102.64/351,163.96 = 91,978.68/x - Step 3: Cross multiply
234,102.64x = 351,163.96 × 91,978.68 - Step 4: Simplify right side
234,102.64x = 32,299,597,504.37 - Step 5: Solve for x
x = 32,299,597,504.37/234,102.64 - Step 6: Final answer
x = 137,971.95
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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.